2020 Ford 6.7, CJ-4

[CrazyMike]

I still have a ton of COOP DMO mineral 15w40 and syn 0w40, probly around 250L combined, any issue to continue running in my 2020 f350 diesel?COOP Lubes

 

[Donald]

I think Ford sped'ed any CJ-4 in my 2015 when they started to balk at the CK-4. But 2020 could be different.

 

[CarbonSteel]

Seriously doubt you would have any issues with it. Ford went off the rails about CK-4 and set their own specification that was not revealed until a few weeks before the debut of CK-4.At this stage of the game, they (Ford) typically states that >1000PPM of phosphorus is the limit for oils they prefer. I would run it without thinking twice.

 

[Bighorn2500]

I'd run it without worry.

If you really don't feel comfortable running it, you could always ship it to me & I'll put it to good use.

 

[CrazyMike]

Thx gents, I'll keep running it, mineral for the summer, syn for the winter. Still has the 10w30 factory fill, will be doing UOA's with every change. I have a dozen or so sample kits here. Cheers!

 

[Donald]

Bypass filter kit recommended. (by me)

And Krown.

Between keeping the engine running and preventing rust truck should be good for 1M miles.

I carry EGT sensor and appropriate wrench along with an OBDII adapter for my phone.

 

[PDRig]

x2 Looks like a good blend. Phosphorus and zinc are above 1000 ppm. Decent bit of boron as well. That is from a uoa i found posted in 2012. Assuming they didn't change the formula....

The oil in the uoa has a 235hr run on it.