I don't stress about oil brand or grade

[tired]

Okay.

So you're saying either one? Why so cryptic?

 

[kschachn]

So you're saying either one? Why so cryptic?

It would depend on your expected starting temperature. If it’s below about -30 or so then use the one with the 0W rating. Above that use either one.

If someone wants to try and read tea leaves about significant formulation differences between the two that’s their endeavor.