Never run a single grade oil. It's 2017.

What's in it for oil?

Don't know where you live, but a 10w40 is good to about 15* F.


Never run a single grade oil. It's 2017.


A 20 winter grade oil (as in a 20w50) is good to about 32* F.


Never run a single grade oil. It's 2017.

Last edited by madscientist; 12/01/16 05:08 PM.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston