SAE 50 Long-Life Synthetic Transmission Oil
Product Code: FTF
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.
Package sizes include:
- 5-Gallon Pail
- 16-Gallon Keg
- 55-Gallon Drum
- 275-Gallon Tote
AMSOIL Long-Life Synthetic Transmission Oil's
high viscosity index translates into better high- and
low-temperature performance compared to conventional fluids. In cold
weather, it provides easier shifts and reduced fluid drag for
increased fuel economy. Its exceptional thermal stability inhibits
chemical breakdown and sludge formation at high operating
temperatures to help transmissions run cleaner.
AMSOIL Long-Life Synthetic
Transmission Oil's synthetic base oils withstand the pressures of
high-load, high-torque applications. As a result, it resists
viscosity loss due to mechanical shear to provide a durable
lubricating fluid film for increased wear resistance and longer
To prove its effectiveness,
AMSOIL installed SAE 50 Long-Life Synthetic Transmission Oil in
line-haul trucks and placed them into real-world service.
After 500,000 miles, a
transmission was disassembled and inspected by a calibrated ASTM
rater. Results reveal Long-Life Synthetic Transmission Oil provided
outstanding wear protection in all critical components. Examples
include the input shaft main drive gear and output shaft bearing,
which both earned high merit scores of 8 out of a possible 10 for
wear. In addition, both components showed no scuffing, spalling or
corrosion, scoring perfect 10s in all areas.
Churning gears introduce air into the fluid, causing foam. When
bubbles between gear surfaces collapse, metal-to-metal contact and
increased wear result. Long-Life Synthetic Transmission Oil contains
foam inhibitors to ensure formation of a strong lubricating film and
excellent wear protection.
Long-Life Synthetic Transmission Oil is compatible with seals to
help prevent leaks and extend seal life.
AMSOIL SAE 50 Long-Life
Synthetic Transmission Oil is excellent for use in manual
transmissions requiring an SAE 50 lubricant found in heavy-duty
equipment. It is recommended for applications specifying any of the
Eaton PS-164 Rev. 7
API GL-1 and MT-1
Navistar/International TMS 6816
Mack TO-A Plus
Follow the OEM drain interval for synthetic oil up to 500,000 miles
or five years, whichever comes first.