I'm changing the oil in my fiesta, and the owner's manual says the oil has to meet the oil spec "WSS-M2C945-A ." Problem is everything I find in stores (Penzoil Platinum, Valvoline Full Sythetic, etc.) all have a different standard listed, "WSS-M2C960-A." Is this just a new standard that supersedes the old one? Do I need to find something still showing WSS-M2C945-A?
I used this post to pick an oil, but the ones I could find in store show the new standard: https://www.fiestastforum.com/threads/oil-information-noack-and-saps.4943/#post-108391
I used this post to pick an oil, but the ones I could find in store show the new standard: https://www.fiestastforum.com/threads/oil-information-noack-and-saps.4943/#post-108391
