Syn Oil?

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"His statement was that multigrade oils contain additives so that part of the quart is not actually dino oil."

This is true for ALL oils , as all contain required 10-15% additive packages.

The difference is multi grade has a stiffing agent (think flour in the gravy) that has the oil get thicker when warm.

I agree that one weight is best for old engines , but not because ther is "more oil in the oil".

FF
 

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