09-13-2010, 08:21 AM
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Senior Club Cobra Member
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Join Date: Jul 2002
Cobra Make, Engine:
Posts: 15,712
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Not Ranked
I would not assume that ALL engines, particularly after market style engines, will benefit from synthetic oil. In fact, synthetic could be a problem for many of them.
I'm not convinced it's always the best choice for a new car either. Manufacturers have various reasons for using synthetic, sometimes in THEIR best interest, not yours, or the motors.
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