Quote:
Originally Posted by Can'tHave2MuchHP
The only reason that would be is because the 15w50 is still a more extreme track oil and they're figuring that a 1LE will see the most abuse/more abuse than "regular" cars. And it says "not recommended" so it's just a recommendation. Obviously anybody who can think for themselves will realize if they need the 15w50. Chances are if you're that serious into tracking to justify the better oil, you probably won't run Mobil 1 anyway.
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Thanks for the link. And I agree, the 15W-50 is for extreme track duty.
But, that 'not recommended' is going to cause issues at the dealerships for some people. Some will only go with 'recommended' And will not really think about the 'not recommended' and just tell people not to use it, even for the street.
Next fill for the street I will definitely look at the 0w-40.