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#9: 12-06-2012, 03:08 PM
 
 bluesuby
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Quote:
Originally Posted by BAC5.2 View Post
It doesn't matter.
What does matter is not running the engine at a constant rpm or over-revving the engine for the first 500 miles. I have used Mobil 1 on 3 cars since day one and all have no problems with oil consumption or rings seating. Porsche and Corvette use synthetic as a factory fill, so they're not buying the dino plan.