Mobil 1 use to be good but they have changed their formulation so many times since then that it isn't that great anymore. Penzoil Plat and ultra are better than M1. And just because manufactures use it doesn't mean it's good. Just means they got a good deal on it that is all. BITOG UOA tests are good enough to show how good it is vs other oils and is proof. I stopped using M1 a while back and since now use Penzoil or Amsoil.
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SOLD: 2007 NISMO 350Z #0044 Silver Alloy
New DD: 2010 Titan Pro4X CC
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