I know we've beat this topic to death the last couple months, but its time for me to do an oil change, and was at Walmart. I had my normal 13Qts of Mobil1 Syn 5w40 in the cart, and then noticed it is CK-4, and remembering reading the thread about that here. Its getting harder and harder to find CJ-4 rated oil these days, while staying away from the CK-4.

I decided to change to Chevron Delo 400LE Syn 5w40 which is still CJ-4 because it was on the shelf. Between two different Walmart stores, I was able to pick up enough for 3 oil changes(10 gallons) which should get me another 20K miles or so. Has there been any updates to this CK-4 debacle that anyone is aware of?

I'm sure our engines wont blow up, but I also want to do the correct thing, and haven't seen any updates.

 

Subscribed to see if we have any oil updates...

This might help - it's an interactive oil search for approved oils. It's on Ford's website.

https://www.fcsdchemicalsandlubrican...archdiesel.asp

 

the list


https://www.fcsdchemicalsandlubrican...SSM2C171F1.pdf

 

Is it me or is valvoline the only 5-40 brand that I know I'll be able to buy without having to special order it? I guess I wouldn't mind ordering my oil but dang, it's just another step toward eliminating my need for a brick and mortar store. I already feel like stores are dinosaurs nowadays.

 

I need to change mine again now. So I think for the summer at least I will run the motorcraft dino 15-40wt.


Should buy a little time anyway.

 

Almost anything on that list could be mail ordered.

 

Just switch to Valvoline Premium Blue Extreme 5w40 and never think about this issue again. That's what I did.

 

I don't see that around my neck of the woods sitting on the shelves. I've looked at Walmart, Autozone, etc. Otherwise I would have chosen that.

 

I can't get it either. Special order is the only way for me to use a 5-40 synthetic now that it appears I shouldn't use T6.

 

NAPA carries the Vavoline Premium Blue Extreme in 5w40 full synthetic. They had it on sale the end of last year for 19/gal, currently like $30/gal.

 

Thanks Larry. that's the one place I didn't stop at...hahaha just my luck.

 

On Saturday I picked up some Valvoline Premium Blue Extreme 5-40 at the Advanced Auto near my house. They had a ton of it left, almost an entire endcap dedicated to just that oil.

 

so T-6 was on the list correct? and if so how can it magically not be good when it was? yet T-5 a blend is good.... makes no sense....


Fert

 

Rotella T6 5w40 CK-4 is NOT yet certified to run in a 6.7L. T5 15W40 is on the list.

 

T-6 was on the list for CJ-4