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Catastrophic Engine Failure - Oil Change Intervals and Oil Brand

  • 2009
  • 911 Carrera S
Mileage: 
28 400
Engine
Johns Creek, 
Georgia

I spend a considerable amount of time reading about and researching Porsche vehicles, 911's in particular. My reference sources include Rennlist, 6Speed Online, Panorama, Excellence, etc. Recently I have been reading about catastrophic engine failures being blamed on oil change intervals and oil manufacturer/brand. Specifically 6 month/5K miles vs. 1 year/10K miles oil changes, and Mobil 1 vs Motul oil manufacturer. The implication is that Mobil 1 oil is poison for your 997 engine. My indy shop does use Motul for my P car.

While I realize that Porsche recommends Mobil 1 and that you change your oil every 12 months or 10K miles, given your years of dealing with Porsche related technical questions and research has the brand of oil ever entered the picture as it relates to catastrophic engine failures?    

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