Yet another oil thread

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This study is on competitive gear lubes completed by Amsoil, but under ASTM procedures.



http://www.synthetic-oil-tech.com/Gear%20Lube%20White%20Paper.pdf



Royal Purple failed couple of tests.
 
Yes, finally, some ASTM tests. However, bottom of the first page idnicates testing is from Amsoil itself. However, thier oils were not the number one in many tests, so I feel this is more of a real test. The only problem is that its gear lube, not oil.
 
Thanks for the post Roger....But how are we supposed to derive what synthetic oils are made of since we are not Petroleum Engineers or Chemists???



...Rich
 
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