Bad Dino?

Joined
Sep 23, 2007
Messages
8,598
Location
Florida
 Originally Posted By: crinkles
what about an SM but not GF-4? e.g. a 15w-40 or 10w-40 weight oil.
Ilsac GF-4 put a strict limit on Phosphorous based additives, that is why some 10w40 and 15w40 oils don't pass the test.
 
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