Originally Posted By: Miller88
Wonder how someone putting SAE16 in a 15w40 diesel would work out?
Which is exactly why they went with 16, 12, 8, etc... instead of 15, 20, 10...
Too easy to confuse with existing viscosities. I can see someone making the mistake of putting 15 weight oil in a diesel that takes 15w40 (especially if people use the erroneous "15W" designation).
I, for one, welcome our new -4w12 overlords.