5W40 Synthetic Discontinued From Ford

mchan68 · July 6, 2017

What are you guys using, for oil changes on Transits and F-Series for oil changes now, now that Mobil 5W40 Synthetic is discontinued from Ford? On F-Series, this might not be a big deal, since the WSM lists 0W40, 5W40, 10W30 and 15W40 as acceptable for use under varying conditions. But on Transits, the WSM calls for 5W40 only. I see that 0W40 is the only synthetic diesel oil available from Ford now. Does that mean we should be using this on Transits, and on F-Series trucks where customers specifically request synthetic?

On my own truck, I've been running 5W40 synthetic since new. Would making the switch to 0W40 hurt (or help)?

forddieseldoctor · July 7, 2017

Is that what is going on. The last time I changed oil the parts guy said the listing on his motorcraft supplier's site was weird.

I'm not sure what I'm gonna run yet. I think we have some on the shelf yet. I might see if they will set it aside for me. At least in 3 jug increments.

Matt Saunoras · July 7, 2017

Where did you see that it is discontinued? Yes the part number did change a little while ago but that may have been with the new CK-4 spec. Also only the 5qt jug changed part numbers, not the 1 quart bottle. This was in the US at least.