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Long-Lasting Service

AMSOIL lubricants have a long service life. Non-synthetic lubes can break down from oxidation and heat. When that happens, they sludge-up, form deposits and have to be changed.

AMSOIL lubricants resist break­down, so they stay intact and run clean. This resistance to heat and oxi­dation prolongs the service life of AMSOIL synthetic lubricants, signifi­cantly extending drain intervals.

Low Temperature Fluidity/High Temperature Stability

AMSOIL lubricants resist the effects of heat and cold far better than non-synthetic lubricants. AMSOIL syn­thetics will make the difference when starting an engine that’s cold, and cooling an engine that’s hot.


AMSOIL lubricants are “super-slip­pery.” They are extremely effective in reducing friction and drag between moving parts, resulting in reduced wear, more efficient operation and better fuel economy.




Versatile For Most Applications

In most cases, AMSOIL lubricants eliminate the need for specialty lubes. AMSOIL products meet or exceed the performance specifications of a wide variety of farm machinery.

Rust and Corrosion Protection

AMSOIL contains special additives to prevent rust and corrosion – a vital factor for equipment that sits idle or is stored for part of the year.  

Motor Oils

What makes AMSOIL synthetic motor oils so good? The molecular uniformity and purity of synthetic oils allows them to protect and lubricate engines better and more efficiently than conventional oils in all operating conditions. Synthetics lubricate and protect quickly in cold temperatures, maintain a dependable lubricating film in normal operating temperatures and shield moving parts from damage and wear during high-stress, high-temperature operations. AMSOIL synthetic motor oils exceed the most demanding world-wide performance standards and meet warranty requirements for all domestic and imported motor vehicle engines.


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High Performance Oils

AMSOIL High Performance Synthetic Motor Oils are specially formulated to operate in high-tempera­ture/high-stress engines, such as those in sport utility vehicles, motor homes, pickup trucks and diesel-powered passenger vehicles.

AMSOIL High Performance Synthetic Motor Oils provide maximum TBN and dispersant protection to control acid and soot in diesel engines. They also provide high levels of key anti-wear chemistries and have outstanding ability to maintain a dependable lubricating film of protection in stressful operating conditions – like those experienced by sport utility vehicles, motor homes and pickup trucks.

Premium Protection Oils

For use in both diesel and gasoline engines. Ideal for applications where the extra protection of a higher-viscosity oil is desired. The higher viscosity may help reduce motor oil consumption in equipment experiencing higher than normal oil usage rates while running lower viscosity lubricants.

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Signature Series Motor Oils

Signature Series Synthetic Motor Oil delivers extraordinary lubrication in all types of automotive gasoline engines. Combining the industry-premier synthetic technology with AMSOIL premium additives, AMSOIL Signature Series Synthetic Motor Oil exceeds the higher performance demands of modern engines, withstanding the stress of higher horsepower, higher heat and complicated emissions control systems. Signature Series Synthetic Motor Oil is engineered to outperform competitive conventional and synthetic motor oils and delivers long-lasting performance and protection for up to 25,000-mile/one-year drain intervals.

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XL Motor Oils

XL Extended Life Synthetic Motor Oils provide better wear control, high- and low-temperature protection and increased fuel economy compared to conventional oils. Formulated with extended-drain boost technology, AMSOIL XL Synthetic Motor Oils provide superior performance for up to 10,000-miles/six months, or longer when recommended in owner’s manuals or indicated by electronic oil life monitoring systems.

OE Motor Oils

OE Synthetic Motor Oils help provide better wear control, high- and low-temperature protection and increased fuel economy compared to conventional oils. The oil drain interval recommendations for many of today’s vehicles extend well beyond the traditional 3,000-mile interval, some up to 12,000 miles with electronic oil monitoring systems. AMSOIL OE Oils provide excellent protection and performance for the entire length of the original equipment manufacturer’s recommended drain interval.

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Diesel Oils

AMSOIL synthetic diesel oils provide outstanding perform­ance in all conditions. They flow easily in cold weather, resist volatilization and reduce friction for improved efficiency and maximum equipment life.

Series 3000 5W-30 Heavy Duty Diesel Oil

AMSOIL Series 3000 Synthetic 5W-30 Diesel Oil delivers extraordinary lubrication in both diesel and gasoline engines, exceeding the higher perform­ance demands of modern engines.

AMSOIL Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil withstands the stress of higher heat, higher acid levels and excessive soot loading found in EGR ­equipped engines. It provides extended drain intervals, maximum fuel economy, unsurpassed wear protection, reduces oil consumption, controls wear and excels in extreme temperatures.


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15W-40 Heavy Duty Diesel and Marine Oil

AMSOIL Synthetic Heavy-Duty Diesel and Marine 15W-40 Motor Oil is a premium diesel oil providing excellent performance in all types of diesel engines where highly effective control of wear and deposits is vital. It provides extended drain intervals, advanced soot and wear control, maximum fuel economy, reduced oil consumption and excellent cold-flow properties.

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CJ-4 5W-40 Diesel Motor Oil

The premium choice diesel oil for model-year 2007 and newer heavy-duty and pickup truck diesel engines requiring API CJ-4 emission-quality oil standards. Delivers extraordinary lubrication in diesel engines in commercial, fleet and personal applications. Exceeds modern specs for emission-quality diesel oil. Its unique synthetic formulation and long-drain additive system (10.4 TBN) deliver superior engine protection, cleanliness and performance over extended drain intervals. AMSOIL Synthetic 5W-40 Diesel Oil provides maximum protection for up to 3X the OEM-recommended drain interval, and further with oil analysis. DEO is also backwards compatible, offering maximum protection to all diesel applications.

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10W-30/SAE 30 Diesel Motor Oil

AMSOIL Synthetic 10W-30/SAE AM30 Diesel Oil is formulated with premium synthetic base oils that exceed both 10W-30 multi-grade and SAE 30 straight-grade viscosity requirements for outstanding performance in modern and older diesel engines. It has a natu­rally high viscosity index and a pour point of -36°F, making it an all-season multi-grade lubricant with a wide operating temperature range.

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Premium CJ-4 15W-40 Diesel Motor Oil

AMSOIL Synthetic 15W-40 Diesel Oil (DME) is the premium choice for API CJ-4 emission-quality diesel oil required by model-year 2007 and newer diesel engines. It delivers extraordinary lubrication in diesel engines found in commercial, fleet and personal vehicles. Built with the latest additive and synthetic base oil technology, AMSOIL Premium Synthetic 15W-40 Diesel Oil exceeds the higher performance demands of modern engines. It withstands the stress of heat, soot and acids to help prevent deposits, corrosion and wear. Its unique synthetic formulation and long drain additive system (10.4 TBN) deliver superior engine protection, cleanliness and performance over extended drain intervals. AMSOIL Synthetic 15W-40 Diesel Oil provides maximum protection for up to 3X the OEM-recommended drain interval, and further with oil analysis. DME is also backwards compatible, offering maximum protection to all diesel applications.

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OE 15W-30 Diesel Motor Oil

AMSOIL OE 15W-30 Synthetic Diesel Oil provides excellent protection and performance in both on and off-road diesel engines for the original equipment manufacturer’s recommended drain interval. It meets API CJ-4 specifications and is suitable for both modern and older diesel applications.

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OE 15W-40 Diesel Motor Oil

AMSOIL OE 15W-40 Synthetic Diesel Oil provides excellent protection and performance in both on and off-road diesel engines for the original equipment manufacturer’s recommended drain interval. It meets API CJ-4 specifications and is suitable for both modern and older diesel applications.

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AMSOIL CJ-4 oils retain there viscosity in the face of shearing forces. With a 4% fuel dilution AMSOIL delivered, while the competition failed. See the report here.

Air and Oil Filters

AMSOIL offers high quality filtration products from other manufacturers such as Donaldson, WIX and MANN.  The launched Ea Filter line includes the finest filtration products in the world for the auto/light truck market, and Donaldson covers the heavy-duty market. To complement the Ea line of filters, AMSOIL now offers WIX and MANN filters, allowing one-stop shopping for customers. AMSOIL carries over 700 WIX air, oil, fuel, and transmission filters for all truck applications

Ea Heavy-Duty Extended-Life Oil Filters

AMSOIL Ea Heavy-Duty Extended-Life Oil Filters provide excellent filtering efficiency and high levels of contaminant capacity for heavy-duty on- and off-road gasoline and diesel applications. They provide extended service intervals that coincide with the maximum drain interval recommendations of AMSOIL synthetic motor oils (not to exceed one year), increasing convenience and reducing maintenance costs. Ea Heavy-Duty filters offer AMSOIL quality at competitive prices.

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Diesel Specific Filters


The Filter Cross Reference guide will return the corresponding AMSOIL, Donaldson, MANN, and WIX filter(s) for any manufacturer filter number



Ea Oil Filters

AMSOIL Ea Oil Filters offer the highest effi­ciency rating in the industry. Their small synthetic nanofibers trap smaller particles and hold more contaminants, resulting in lower restriction. AMSOIL EaO Filters have a far greater capacity than com­peting filter lines. When used in conjunction with AMSOIL Ea15K Filters are guaranteed for up to 15,000 miles/one year, whichever comes first, and EaO Filters are guaranteed for up to 25,000 miles/one year, whichever comes first, depending on application and severity of service.

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Donaldson Nanofiber technology and rugged construction provide exceptional performance and extended service life

Donaldson Endurance air and oil filters provide the highest level of filtration efficiency in the heavy-duty industry. Specifically designed for on-road, heavy-duty class 6, 7 and 8 vehicles, Donaldson Endurance air and oil filters feature revolutionary nanofiber technology. Endurance air filters offer longer engine life, longer filter life, initial efficiency up to 99.99 percent and five times more capacity than con­ventional cellulose filters.

Endurance air filters come with a “twice the miles” guarantee to deliver twice the miles between change intervals over cellulose air filters for on-highway applications, or customers receive a new filter at no charge.

Donaldson® Endurance™

Donaldson Endurance™ oil filters are made with premium advanced synthetic media technology that results in fibers that have a controlled size, shape and smaller fiber diameter.

The controlled media manufacturing process allows Donaldson Endurance™ oil filters to deliver both higher dirt holding capacity at the same pressure differential and higher efficiency compared to conventional cellulose filters. The synthetic media also has better durability with usage.

Throughout the service life of a cellulose filter, hot oil will degrade the resins that bind the media. The synthetic media technology uses a wire screen backing pleated with the media, resulting in superior strength.

Donaldson Endurance™ oil filters offer extended service intervals, greater engine protection to prolong engine and equipment life, improved lubricant flow, improved cold start performance and lower operating costs. Synthetic media technology delivers cost saving benefits with:

• Extended Service Life • Greater engine protection to prolong engine and equipment life • Improved lubricant flow • Improved cold start performance • Reduced operating costs • Can be used beyond OEM drain intervals  

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Donaldson® Endurance™ Air Filters

Donaldson Endurance™ Air Filters with exclusive nanofiber technology offer longer engine life, longer filter life, initial efficiency up to 99.99 percent and five times more capacity.

The nanofiber technology causes submicron contaminants to be held on the surface layer of smaller fibers. This filtration characteristic is only possible with this new type of air filtration technology. In on-highway applications, where the contaminant is primarily submicron in size, Donaldson Endurance filters cause less restriction than conventional filters with cellulose media. The smaller interfiber spaces of nanofiber technology have a higher efficiency and capture more contaminant.

The following illustration may help visualize these phenomena: Imagine two filters, a chain link fence and a mosquito net, with a tennis ball being a dirt particle. As you may have observed, a tennis ball will fit quite nicely into an opening of a chain link fence, but will obstruct the hole almost 100%. Now imaging the same tennis ball covering a mosquito net. The tennis ball, at the point of contact with the netting, will obstruct much less filter area than the chain link fence example. In fact, air will flow around the tennis ball all the way to the point of contact. It will take many more particles to obstruct the netting surface area than the chain link fence.

Donaldson Endurance™ air filters are guaranteed to deliver twice the miles between change intervals over cellulose air filters for on-highway applications or customers receive a new filter at no charge.

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Donaldson P-Series Oil, Air, Fuel, Hydraulic and Coolant Filters.

With many applications that differ from, and several that coincide with the Endurance line, Donaldson P-Series filters offer premium filtration at a competitive price. Donaldson P-Series filters feature housing constructed with heavy gauge steel and domed construction, providing superior pressure fatigue performance. Donaldson P-Series oil filters are constructed with either full synthetic media or synthetic blends for high efficiency. The center tube allows more flow without compromising strength, and the louvered design eliminates tearing during pleat movement. The media is embedded deeper into the sealing plastisol than conventional filters, allowing better sealing longevity. Additional features include a nitrile sealing gasket, a fully tucked seam, roll formed threads and a compression spring holding all the components in place within the filter.

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Oil Filters

Donaldson P-Series oil filters feature housing constructed with heavy gauge steel and domed construction, providing superior pressure fatigue performance. Donaldson P-Series oil filters are constructed with either full-synthetic media or synthetic blends for high efficiency. The center tube allows more flow without compromising strength, and the louvered design eliminates tearing during pleat movement.

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Hydraulic Filters

AMSOIL offers a full line of hydraulic filters from Donaldson. Donaldson P-Series hydraulic filters provide superior protection for hundreds of machinery and component applications, both in the fac­tory and on heavy-duty equipment.

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Air Filters

Donaldson air filter media is made up of specially formulated fibers designed to trap contaminants such as dust, dirt and soot before they reach the engine. The media is pleated to maximize the filter surface area and placed between rigid liners to provide stability and. support. A high quality filter seal is applied or built-in to the open end of the filter to prevent dirty air from bypassing the filter. Donaldson has developed an extensive range of air filter media to provide the best engine protection no matter what the operating conditions. For example, using the same particle size contaminant, for every eight grams of dirt passed through a Luber-finer filter, the Donaldson filter passed only two grams.

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Coolant Filters

Donaldson P-Series coolant filters remove contaminants from the cooling system, minimize the risk of filter plug­ging and keep engines running efficiently.

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Fuel Filters

Donaldson fuel filters provide clean, filtered fuel that pre­vents pump wear, injector clogging, and premature engine wear and can boost fuel efficiency. AMSOIL offers a com­plete line of spin-on and cartridge-style Donaldson fuel fil­ters. Donaldson filter media features a multiple-layered design specifically made to remove water and contami­nants from the fuel stream.

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WIX is well-known around the world for its innovative filtration products for the automotive and light truck market. Founded in 1939, the Gastonia, N.C., company earned acclaim during World War II when it created an oil filter out of a paper tube, wooden plugs and yarn when steel was in short supply. In 1954 WIX created the revolutionary spin-on oil filter that was eventually adopted as original equipment on most vehicles.

Today WIX manufactures some of the best oil, air, lube, cabin air, hydraulic, fuel, crank case breather and transmission filtration products on the market. The company is also widely known for its support of NASCAR.

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By-Pass Filters

Ea By-Pass Filters

AMSOIL Ea By-Pass (EaBP) Filters provide higher filtering efficiency, soot removal and increased oil capacity due to new media composition and con­figuration. AMSOIL EaBP Filters have an efficiency of 98.7 percent at two microns. At normal operat­ing RPMs the EaBP Filter will filter all of the oil in a typical five quart sump in less than 10 minutes. The superior construction of AMSOIL EaBP Filters provides better sealing and increased longevity along with superior corrosion resistance.

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Single Remote By-Pass Filter System

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Ea BMK30 By-Pass Filter

The AMSOIL Heavy-Duty By-Pass Filtration System provides superior filtration performance for heavy-duty on- and off-road applications. The BMK30 is designed specifically for the Heavy-Duty Ea By-Pass Filter bringing Ea synthetic nanofiber technology to the heavy-duty market.

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By-Pass Filter Systems

The Ea By-Pass Oil Filter (EaBP) provides the best possible filtration protection against wear and oil degradation. Working in conjunction with the engine’s full-flow oil filter, the AMSOIL Ea By-Pass Filter operates by filtering oil on a “partial-flow” basis. It draws approximately 10 percent of the oil pump’s capacity at any one time and traps the extremely small, wear-causing contaminants that full-flow filters can’t remove. The AMSOIL Ea Bypass Filter typically filters all the oil in the system several times an hour, so the engine continuously receives analytically clean oil.

Dual Remote By-Pass Filter System

dua lremote

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Learn More About By-Pass Systems

By-Pass Filters & Systems

By-Pass Filtration System Application Guide


Dual Gard By-Pass Filtration

The AMSOIL Dual-Gard By-Pass Oil Filtration System links two AMSOIL By-Pass Filter Elements together for engines with sump capacities over 20 quarts. Allows fast and simple servicing with spin-on elements.

Wear tests have shown particles of contamination in the sub-20-micron range are most harmful to rings and bearings. Most trucks are sold with a full-flow filter as their only oil cleansing unit.

The layered synthetic/cellulose composite media by-pass filter has been shown to reduce piston ring, and rod/main bearing wear. 

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Gear Lubes

Farmers need to cut costs wherever and whenever they can. AMSOIL synthetic gear lubes save money by making drivetrains operate as efficiently as possible for as long as possible.

Reduced Friction 

AMSOIL synthetic gear lubes are blended with outstand­ing anti-friction properties. Friction in transmissions and differentials steals energy. Lost energy translates into less power and poor fuel economy. The superior “slipperiness” of AMSOIL gear lubes makes gear-boxes run cooler and easier. Components move with less resistance, even un­der heavy loads. Transmission parts last longer and the saved energy is transmitted to the wheels, allowing maxi­mum use of every gallon of fuel.

Reduced Wear

The outstanding extreme-pressure and anti-wear prop­erties of AMSOIL synthetic gear lubes keep wear at an absolute minimum, resulting in greater equipment reliabil­ity and less money spent on repairs, replacement parts and downtime. AMSOIL gear lubes helps keep equipment in the field and out of the shop.

Long Life Gear Lubes

AMSOIL Long Life Synthetic Gear Lubes are extended-drain gear lubes en­gineered specifically to last sev­eral times longer and protect gears better than all conven­tional gear lubes. These exclusive AMSOIL formulations of pre­mium synthetic base oils and high-performance additives resist acid, carbon and varnish formation form oxidation breakdown. AMSOIL Long Life Synthetic Gear lubes are available in 75W-90 and 80W-140 viscosities. They provide high-load gear and bearing protection, reduced operating temperatures, rust and corrosion protection, better cold-weather shifting, improved efficiency and improved seal life.





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80W-90 Synthetic Gear Lube

AMSOIL 80W-90 Synthetic Gear Lube is a multi-functional product designed to surpass the requirements of equipment and automotive applications calling for an SAE 80W-90 viscosity grade. Formulated with wax-free synthetic base oils and high-quality additives, AMSOIL 80W-90 Synthetic Gear Lube resists thermal breakdown. Its naturally high viscosity index and shear stable construction improves film strength and viscosity retention. AMSOIL Synthetic 80W-90 Gear Lube prevents wear, resists heat and protects gears. It last longer in service than conventional gear oils and increases equipment life.

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Severe Gear 75W-140 EP Gear Lube 

AMSOIL Severe Gear® 75W-140 Synthetic Extreme-Pressure Gear Lube is a premium-grade oil specifically engineered for maximum performance in severe-duty applications. This state-of-the-art AMSOIL formulation features an exclusive blend of high-viscosity, shear-stable synthetic base oils and an extra treatment of high-performance additives. AMSOIL Severe Gear 75W-140 Synthetic Gear Lube maintains its viscosity for long‑lasting protection against metal-to-metal contact. This high-performance gear lube excels in extreme temperatures and provides superior film strength, controls thermal runaway, provides superior rust and corrosion protection, reduces operating temperatures and provides improved efficiency and lon­ger oil, seal and equipment life. AMSOIL Severe Gear is also available in 75W-90 and 75W-110 viscosities 

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75W-110    more information         

75W-140    more information         

Tractor Hydraulic/Transmission Oil

Tractor Hydraulic/Transmission Oil

AMSOIL Synthetic Tractor Hydraulic/Transmission Oil is an all-weather Universal Tractor Transmission Oil (UTTO) engineered to meet the tough demands of heavy-duty, hydraulic-powered farm and other commercial equipment. Its unique formulation of synthetic base stocks and additives effectively reduce s wear, resists heat, protects against rust and extends fluid and equipment service life.

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Excellent High-Temperature Protection

AMSOIL Tractor Hydraulic/Transmission Oil is highly resistant to heat breakdown and chemical changes.  It is a better carrier for heat transfer, so equipment runs 20° to 50° cooler. That means more efficient and economical opera­tion with less maintenance and profit-stealing downtime.

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Most hydraulic/transmission failures are caused by contam­ination or breakdown of the hydraulic fluid. Excess heat is a major enemy of hydraulic/transmission fluids. Non-synthetic hydraulic fluids are likely to oxidize when exposed to the extreme environment of tractor transmissions and hydraulic systems. Oxidation leads to the formation of acids, varnish and sludge deposits. This can thicken oil, reduce lubricating abilities, accelerate wear, damage hoses and lead to further overheating and catastrophic component failures.

Extended Drain Intervals Save Money 

AMSOIL Synthetic Tractor Hydraulic/Transmission Oil is recommended for ex­tended oil drains based on oil analysis. Its durable formulation allows drain intervals two to three times longer than those of conventional fluids. This saves time, effort and money because you buy fluid less often. In addition, cooler operation with AMSOIL Tractor Hydraulic/Transmission Oil increases fuel economy and equipment life, especially for hoses, which are susceptible to heat damage. It is compatible with all seal materials and allows maximum seal and hose flexibility, positive seal seating and provides reduced oil leaking.

All-Weather Performance 

AMSOIL Synthetic Tractor Hydraulic/Transmission Oil is all-weather oil that operates over a wide range of temperatures. It has a high viscosity index to maintain its lubricity at high operating temperatures, and it flows at temperatures as low as -47°F for improved equip­ment operation and wear protection. It exceeds the most demanding all-weather specifications of both Ford New Holland FNHA 2-C-200 & 2-C-201 and John Deere J20C & J20D, eliminating the need for seasonal oil changes. 

Smooth Brake Operation

AMSOIL Synthetic Tractor Hydraulic/Transmission Oil is formulated with durable friction modifier additives that effec­tively suppress wet brake chatter. Unlike conventional oils that can break down and cause vibration, AMSOIL Synthetic Tractor Hydraulic/Transmission Oil provides continuous frictional stability for long-term smooth brake operation.

Transmission Fluids

SAE 10W, 30W, 50W

AMSOIL Synthetic 50W Powershift Transmission Fluid  exceeds Fuller CD-50 performance specifications and is ideal for use in Fuller, Rockwell, Spicer, Fabco, Warner and other large truck manual transmissions.

Superior Wear Protection

AMSOIL Synthetic Powershift Transmission Fluids are formulated for superior wear protection, without viscosity index improvers. They maintain grade throughout service life, providing long-term protection against equipment wear, even when equipment is frequently subjected to sustained periods of applied pressure or high horsepower and high torque.




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High and Low - Temperature Performance

AMSOIL Synthetic Powershift Transmission Fluids provide superior protection in high temperatures. They inhibit the formation of varnish, deposits and sludge, while their excellent heat transferring abilities help hot-running equipment operate up to 50°F cooler. In low temperatures, AMSOIL Synthetic Powershift Transmission Fluids flow readily for dependable startup and post-startup protection

Extended Drains

AMSOIL Synthetic Powershift Transmission Fluids provide two to five times the service life of conventional petroleum fluids if kept free of dirt and moisture. They may be used in manual transmissions for 250,000 miles or five years, whichever comes first.

SAE 50 Long-Life Transmission Oil

AMSOIL SAE 50 Long-Life Synthetic Transmission Oil is specially formulated to meet the demanding requirements of manual transmissions found in high-torque, heavy-duty line-haul trucks and other commercial applications. Its synthetic base stocks and premium additives help reduce gear and bearing wear (see photos), improve shifting and extend transmission life throughout drain intervals of up to 500,000 miles/five years. Compared to conventional fluids, Long-Life Synthetic Transmission Oil can help operators reduce maintenance costs and increase productivity.

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Torque-Drive Automatic Transmission Fluid

Engineered to eliminate deficiencies common to all conventional petroleum ATFs, AMSOIL Torque-Drive provides superior performance and protection against thermal and oxidative degradation, sludge and varnish formation, viscosity shear down, cold-temperature oil thickening, poor friction stability, high component wear and shortened oil life. Automatic transmission operating expenses can be directly linked to transmission fluid quality. Poor-quality oils need frequent changes and reduce the effective service life of transmissions. Delivering maximum oxidation resistance, wear control and friction performance, AMSOIL Torque-Drive extends lubricant life and provides protection beyond that possible from conventional ATFs. Immediate financial benefits are possible upon the installation of AMSOIL Torque-Drive. Vehicles stay on the road longer, unnecessary labor and maintenance costs are reduced, and the return on costly transmission investments is maximized.

AMSOIL recommends Torque-Drive® for use in all automatic transmissions requiring any of the following specifications: Allison® TES 295, TES 389, C-4; Voith® 55.6336.XX; ZF® TE-ML 14C; GM Dexron® III; Ford Mercon®; Mercedes-Benz® 236.10

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Polymeric Truck, Chassis and Equipment  Grease 

AMSOIL Synthetic Polymeric Truck, Chassis and Equipment Grease (GPTR1, GPTR2) delivers excellent wear protection and extreme-pressure performance over extended service intervals in medium- and heavy-duty applications. It combines select base oils, proprietary synthetic polymeric chemistry, an advanced additive package and a lithium-complex thickener for excellent impact resistance, reliable contaminant control and maximum longevity.

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Synthetic Multi-Purpose Grease

AMSOIL Synthetic Multi-Purpose Grease is qualified against the highest grease standards and designed for multiple-use ap­plications. It is composed of premium-quality synthetic base oils and lithium-complex thick­eners for superior film strength, shear resistance, adhesion properties and mechanical stability. AMSOIL Synthetic Multi-Purpose Grease features a superior high-temperature dropping point. It resists thermal and oxidation degradation, provides excellent water-wash­out resistance and superior low-temperature torque value and pumping capability. Available in 14-oz. cartridges, 35-lb. lugs, 12-lb. kegs and 400-lb. drums. AMSOIL Multi-Purpose Spray Grease is available in 10.5-oz. spray cans.

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Polymeric Off-Road Grease

AMSOIL Synthetic Polymeric Off-Road Grease (GPOR1, GPOR2) combines an over-based calcium-sulfonate complex thickener and proprietary synthetic polymeric technology to provide outstanding performance in heavy duty off-road applications.

GPTR1    more information          
GPTR2    more information          




Water Resistant Grease

AMSOIL Synthetic Water Resistant Lithium AM-Complex Grease is an extreme-pressure, multi-purpose grease formulated specially for wet-duty performance. Its water washout and spray off resistance are ideal for wheel bearings of vehicles and trailers frequently exposed to water, mud, snow or ice. It seals metal surface against rust and chemically fights corrosion. AMSOIL Synthetic Water Resistant Grease provides superior high- and low-temperature performance and maximum load-carrying and extreme pressure performance. Available in 1 4-oz. cartridges, 35-lb. lugs and 120-lb. kegs.

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Semi-Fluid 00 Synthetic EP Grease 

AMSOIL Semi-Fluid 00 Synthetic EP Grease is formulated with high-viscosity ISO-460 synthetic base oils and a sophisticated additive package, provid­ing an unparalleled protection system that reduces wear and prevents damage. Its advanced extreme-pressure additives provide superior protection and performance in shock-loading applications which can rupture the oil film of conventional greases and lead to damaging metal-to-metal contact. AMSOIL Semi-Fluid Grease resists water and provides superior protection against corrosion and oxidation, which can eat away and destroy critical components and lead to equipment failure. Available in 35-lb pails, and 120-bb kegs, 400-lb drums are available by special order.

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Spray Grease

AMSOIL Spray Grease effectively reduces friction and wear, keeping components running clean and trouble-free for outstanding performance and long life. It applies quickly and evenly and is ideal for greasing hard-to-reach equipment, including hinges, springs and other common applications.

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Fuel Additives

Diesel Concentrate

AMSOIL Diesel Concentrate  is a total system cleaner and lubricity improver for all types of diesel engines. AMSOIL Diesel Con­centrate compensates for the quality vari­ances of different fuels (including biodiesels) and the deficiencies of today’s ultra-low sulfur diesel fuel for better engine operation. It reduces cylinder wear, retains TBN longer, minimizes soot loading and acts as a fuel sta­bilizer. AMSOIL Diesel Concentrate restores horsepower to like-new levels and improves fuel economy by up to five percent.

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Cetane Boost

AMSOIL Cetane Boost  improves diesel fuel quality to benefit all diesel engines, especially high performance designs. AMSOIL Cetane Boost reduces operating costs by increasing fuel economy up to two percent. It improves the spontaneous auto-ignition point of diesel fuel, shortening ignition lag time and providing more complete combustion for better performance, power and drivability. AMSOIL Cetane Boost improves diesel engine performance, increasing cetane value by up to seven points.          

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Pi Gasoline Additive

AMSOIL Pi Performance Improver (API) is the most potent gasoline additive available today. As a concentrated deter­gent, it is unsurpassed in cleaning combustion chamber deposits, intake valve deposits and port fuel injector deposits, eliminating the need for expensive fuel injec­tor cleaning procedures. It is ideal for use prior to emissions inspections, and it helps maintain peak engine efficiency, fuel economy, power and dri­vability in newer low mileage engines. In engines with accumulated deposits, PI provides improved fuel mileage up to 5.7%, reduced emissions, restored power and performance, reduced need for higher octane fuel, reduced carbon rap and preignition, better drivability and smoother operation after only one tank of gasoline.

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Cold Flow Improver

AMSOIL Cold Flow Improver  for diesel fuel is designed for use in ultra-low sulfur diesel fuel, yet works well with con­ventional fuels. It functions by modifying wax crystal formation at low temperatures to depress the pour point and improve cold flow filtration properties. AMSOIL Cold Flow Improver contains jet fuel-type deicer to help prevent ice formation in fuels contaminated with water. It is rec­ommended for use with diesel engines and is compatible with diesel exhaust particulate filters. AMSOIL Cold Flow Improver is excellent for use with AMSOIL Diesel Concentrate and AMSOIL Cetane Boost Additive.

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Diesel Concentrate Plus Cold Flow Improver

AMSOIL Diesel Concentrate Plus Cold Flow Improver is formulated with excellent detergency properties to help keep injectors, rings, piston crowns and the fuel pump lubricated. By improving injector performance, combustion becomes more efficient and less soot is generated. Diesel Concentrate Plus Cold Flow Improver cleans dirty injectors, improving fuel economy by up to five percent and restoring horsepower to like new. Acceleration is improved and with regular use, Diesel Concentrate Plus Cold Flow Improver continues to enhance performance by keeping injectors clean. The net savings on fuel expense can result in no additional cost to vehicle operation.

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Gasoline Stabilizer

AMSOIL Gasoline Stabilizer extending engine life and reducing operating reduces the oxidation process that occurs when fuel is stored for extended periods. It prevents the formation of var­nish and sludge which can clog injectors, stick floats and cause poor engine performance. AMSOIL Gasoline Stabilizer is ideal for stored seasonal equipment such as motorcycles, snowmobiles, lawnmowers and boats. The treat rate is one ounce with every 2.5 gallons of fuel. One bottle treats 40 gallons.

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AMSOIL Diesel Recovery quickly dissolves gelled fuel, thaws frozen fuel filters and reduces the need for a new filter, saving both money and an inconvenient trip to a parts store. Performs well in all diesel fuels, including ULSD, off-road and biodiesel. Cheap insurance against frozen fuel.

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Maintenance & Accessory Products

Power Foam

AMSOIL Power Foam improves starting and increases fuel efficiency. Power Foam penetrates and thoroughly cleans the engine’s intake system, freeing sticky valves, cleaning dirty spark plugs and removing gum, varnish and carbon deposits from exterior engine surfaces

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Heavy-Duty Degreaser

Fast-Acting Equipment and Surface Degreaser

AMSOIL Heavy-Duty Degreaser is formulated with powerful and fast-acting solvents, attacking petroleum-based grime on a molecular level to loosen its hold on metal, concrete, engines and other surfaces. Its active citrus formula makes cleaning easy and leaves a clean scent.

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MP Metal Protector

Metal Protector are easy-to-use spray-on products that protect metal surfaces, displace water and silence squeaks. MP cuts through rust and corrosion to restore free movement of “frozen” hardware parts. AMSOIL MP is the product of choice for drying electrical and ignition systems and protecting electrical equipment from freshwater and saltwater damage. It contains no silicone.  

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Heavy Duty Metal Protector

AMSOIL Heavy Duty Metal Protector is the product of choice for metal surfaces that require a heavy duty lubricant or are exposed to the damaging effects of salt, moisture or chemical corrosion. It is ideal for hinges, wire ropes and springs, nuts and bolts, motorcycle or bicycle chains, and for undercoating wheel wells and other metal surfaces exposed to water, dirt or road salt.

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Silicon Spray

Perfect for lubricating non-metallic surfaces that come into contact with metal, nylon, cardboard, fiberglass, wood or plastic surfaces. Use anywhere a light-duty or silicone lubricant is required. Special non-staining formula. USDA H-1 rated for incidental contact with food. Excellent for waterproofing leather boots, shoes, jackets, suede, etc.

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Propylene Glycol Antifreeze and Engine Coolant 

AMSOIL Propylene Glycol Antifreeze and Engine Coolant combines biodegradability, low toxicity and all-climate protection. Being  that it is low toxicity limits the threat to children, pets or wildlife. Its revolutionary formu­lation provides maximum antifreeze and cooling protection in the most extreme temperatures and operating conditions. AMSOIL Antifreeze and Engine Coolant contains a proprietary poly-organic acid technology that eliminates the need for periodic changing or recharging of cooling systems. There is no need for supple­mental coolant additives. It provides extended service life in all gasoline and diesel engines. 

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Pre Mix Passenger Car & Light Truck Antifreeze and Engine Coolant 

Ethylene Glycol 50/50 Pre-Mix Formulation

AMSOIL Passenger Car/Light Truck Antifreeze & Coolant provides superior heat transfer and excellent protection against corrosion, freezing and boilover. It provides maximum protection in extreme temperatures and operating conditions, and provides superior protection for aluminum, steel, cast iron, copper, brass and solder alloys.

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Pre Mix Heavy-Duty Antifreeze and Engine Coolant 

Ethylene Glycol 50/50 Pre-Mix Formulation

AMSOIL Heavy-Duty Antifreeze & Coolant provides superior heat transfer and excellent protection against corrosion, cylinder-liner cavitation, freezing and boilover. It provides maximum protection in extreme temperatures and operating conditions, and provides superior protection for aluminum, steel, cast iron, copper, brass and solder alloys.

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Engine and Transmission Flush

AMSOIL Engine and Transmission Flush helps restore fuel economy, increase operating efficiency and reduce emissions in gasoline and diesel engines, and automatic transmissions. Its potent, detergent-based formula cleans sludge and deposit build-up, promoting lower operating temperatures and reduced oil consumption. AMSOIL Engine and Transmission Flush is safe on parts and can be easily disposed of with waste oil.

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Series 500 High-Performance DOT 3 and 4 Brake Fluids

High-temperature performance in auto/light-truck, high-performance, racing and powersports applications. High-temperature stability, yet flows easily at low temperatures. Helps keep water in suspension, slowing its effects on the brake system. High boiling temperatures ensure maximum life and reliable braking power.

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Universal Power Steering Fluid

AMSOIL Synthetic Universal Power Steering Fluid provides excellent wear protection. Its synthetic formulation delivers better lubricity and reduced friction, resulting in cooler operating temperatures, longer component life and quieter operation. AMSOIL Power Steering Fluid is formulated with a high viscosity index. Its low pour point ensures immediate lubrication at startup and in cold temperatures, yet it resists thermal breakdown and maintains maximum protection in high temperatures.

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Oil Analysis

Oil analysis enables maintenance personnel to evaluate motor oil service life and engine condition and save significantly on downtime, equipment repair and oil-related costs.

  • Oil Analyzers Inc. puts technologically advanced testing equipment in the hands of experienced diagnosticians.

  • Accurate, reliable Oil Analyzers Inc. findings may be used to reduce equipment replacements and repairs, reduce the volume of lubricant purchased and des­tined for disposal and reduce equipment downtime.

  • Oil Analyzers Inc. normally turns out reports one working day after a sample is received. When a time-sensitive condition is detected, OAI calls with the information.

  • Oil Analyzers Inc. kits include everything required for analysis: sample gather­ing materials, sample testing and, in the UPS, return postage.

  • Oil Analyzers Inc. offers a quantity discount over the single kit price on orders of 10 or more kits.

Note: Sampling Pump and Hose are sold separately (G1206) 

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More Infomation and Product Application


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