Home Button

Amsoil for Automobiles

Amsoil For 4x4 & Off-Road

Amsoil  for Classic Cars

Amsoil for Construction & Heavy Equipment

Amsoil for Fleets

Amsoil for Farming & Agriculture

Amsoil for Industrial

Amsoil for Lawn & Garden

Amsoil for Marine

Amsoil for Motor Homes

Amsoil for Motorcycles

Organic Fertilizers

Amsoil for Performance

Amsoil for Pickups

Amsoil for Diesel Pickups

Amsoil for Racing

Amsoil for Trucks


Amsoil Products

Amsoil Products by Category

How to But Amsoil

Amsoil Catalog Request

Amsoil Garage

Amsoil Product Lookup Guides

Amsoil Filter Cross Reference


About Fisher Resource Solutions

Contact Fisher Resource Solutions

Amsoil FAQ

Amsoil Infomation & Articles

Motor Oil Comparisons

Amsoil Performance Tests

Fisher Resource Solutions Race Team


Search Our Site


Amsoil Authorized Dealer Website

Amsoil Certified Dealer TwitterPage 

Amsoil Certified DealerLinkedin Page

Amsoil Certified Dealer Facebook Page

Amsoil Certified Dealer Blog


AMSOIL vs. Royal Purple


AMSOIL has Better Cold Crank, Lower Pour Points (ASL & ATM)  , Lower Viscosity, Better Wear Protection, Higher TBN, Better Viscosity Stability (ASL & ATM) than Royal Purple








The National Advertising Division of the Council of Better Business Bureaus recommended Porter, Texas-based Royal Purple modify or discontinue numerous advertising claims for its synthetic motor oil, following a challenge by Wayne, N.J.-based BP Lubricants. The NAD examined comparative performance and superiority claims in print, broadcast and Internet advertising. In some of the advertising, Royal Purple compared its performance to Castrol, Shell, Amsoil and other motor oil brands.
NAD recommended that Royal Purple discontinue its use of consumer testimonials reporting specific performance attributes in the absence of reliable independent evidence showing performance capability.
Read More

Click on the drop down box to see more oil comparisons 



 Copyright 2006 - 2015 Fisher Resource Solutions ®  All rights reserved.