Quote:
Originally Posted by Boost Creep
It's still a 0w oil with an additive package to make it act like a 40 weight when hot. I'd rather start with a more substantial base.
My car lives in a garage so cold flow is less critical, never really gets below 45º in the dead of winter.
The engine was designed and speced to work with 5w so no issues.
Now if it lived outside and was a daily driver, then in the winter I might think about running it, but as it stands, no thanks.
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Agreed, as long as you use Dexos2 it should also be good for reducing carbon buildup and preserving the cats.
Quote:
Originally Posted by Xaxas
Then, Mobil 1 came out with 0w-40 and Chevy, the makers of the car that is "speced" for 5w-30 said "We'll use 0w-40 moving forward".
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Yup, while 5w will work fine I do trust that the Chevy engineers are telling us the 0w-40 M1 ESP is better because it actually is and not because (insert conspiracy theory here).