Mr96GSX408
20+ Year Contributor
- 417
- 3
- Jul 14, 2002
-
Bay Area/Central Coast,
California
http://www.mobil1.com/USA-English/MotorOil/Oils/Mobil_1_Extended_Performance.aspx
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... and the engine was still going strong. it was running some cheap oil too.trbotaln said:If Mobil 1 was crap, I don't think cars like Corvettes, Vipers, Porche's would come from the factory with Mobil 1 synthetic oil.
There is nothing wrong with using synthetic to "break in" a new engine. Since cross hatch and machining processes are better than they were 50 years ago, the rings will have no problem wearing to the cylinder walls to make a good seal with synthetic.gsx951 said:Only a retard or a corporate whore would fill a crankcase with synth oil before the motor was broke in.
92redman said:There is nothing wrong with using synthetic to "break in" a new engine. Since cross hatch and machining processes are better than they were 50 years ago, the rings will have no problem wearing to the cylinder walls to make a good seal with synthetic.
They will void the warranty if anything other than Mobile 1 is used. If it was bad for the engine, the engineers wouldn't allow it because it would cost the corporation so much money to replace somebody's brand new engine that isn't sealing well.

91 white tsi said:There is a twin turbo mustang that wanted to prove this. He used evey brand of oil all throw out his car (diff trans engine oil) with the end result of a gain of 80+ HP over the second leading brand when he used moble one.