Originally Posted By: Captain_Klink
at least the Mobil AFE 0w30 has better low temp. pumping than PZ synthetic 5w20.
Mobil 1 AFE 0w30 MRV at -40C 11,100 PZ 5w20 MRV at -35C 9,700
I had been wondering about those two specific oils, as I have some of both in my stash. I'm still learning what all of the statistics mean, but am I to gather from this that the Mobil 0w30 would be a better cold-weather fill than PP 5w20, from a protection at cold start perspective?