Oil Specification

vwalburn · Dec 28, 2024

When did Ford's current oil specification, WSS-M2C961-A1, come out and how does it compare to GM's DEXOS spec.?

Saddle Tramp · Dec 29, 2024

I have absolutely no idea. Hopefully someone here does.

TheDo114 · Dec 29, 2024

Post #2 in this forum explains the difference and how it relates to DEXOS.

https://www.f150forum.com/f118/api-sn-plus-vs-sp-oil-rating-480039/

Looks like the new specs came out in 2020 and was fully indicated in owners manual for 2022+ model years Ford