Originally Posted By: addyguy
I generally agree...not a 'fair' comparison.
You wouldn't use a 0W-20 in an application that called for a 40-weight oil....no 20wt. can meet that need, technically.
So the fact that 0W-20 pours better than 0W-40 doesn't mean someone will choose it over a 0W-40....
And, in general, what been proven here? Of course a thinner 0W-20 will pour better than a thicker oil at extreme temps!
Now, compare M1 0W-20 to Amsoil 0W-20...now you're talking!
Quite frankly, I didn't read the youtube comments. I just took the video as "These are the two oils; here it is" not that one was better than the other.