Quote:
quote:Originally posted by taikuchin
Turbo experts claim that the turbo itself requires the synthetic oil because of the high heat generated especially after shut down when the oil is no longer circulating & the turbo is still HOT. I use Mobil 1 (5w30 winter, 15w50 summer) and after 3k miles, it's dirty. It may still lubricate ok, but I think clean oil is better for the motor than dirty oil so I change at 3000 miles. Haven't had to file for bankrupcy yet...& I don't even shop at Wallmart.
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I agree with you. But just for the record, oil should be changed because it will usually breakdown, therefore providing less protection.
The common myth is that the oil is dirty. But truthfully, breakdown is what you are more than likely dealing with.
Synthetic oils provide better lubrication, therefore keeping the engine slightly cooler. Breakdown should occur after a longer time than with conventional oil.[8D]