Quote:
Originally Posted by DaveC113
That's only when it's cold, so you get superior oil flow at startup. That's one of the main benefits of 0w-40 vs 5w-XX
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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.