Not knowing much about oil, aside from M1 0W40 having great results in my cars over many years and miles, I wonder if this is similar to M1 0W-40 before the change a few years ago when the rules for what was deemed synthetic were changed.
Looks like M1 now has a new FS oil in 5w40 which seems a little redundant with the 0w40. This one is "FS X2"... so 2x as good lol? Any thoughts on this?
Looks like M1 now has a new FS oil in 5w40 which seems a little redundant with the 0w40. This one is "FS X2"... so 2x as good lol? Any thoughts on this?