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Yes that stuff has already been in the bottles for sale on the shelf even though they didn't mark them CK-4 yet. I bought some last December thinking I was getting CJ-4 but found out later they started bottling the new stuff earlier in the year. My bottles were dated Sept 2016. I returned them all and will wait to see what Ford's final word will be on the new specification. I have enough CJ-4 for one more oil change and will probably switch to Motorcraft CJ-4 after that.
In order to meet goals for more fuel-efficient engines and fewer emissions, many next-generation engines will run at higher operating temperatures. This will require changes in engine oil composition, so they can withstand more heat without sacrificing engine protection.
It will also mean that instead of one category of engine oils, we’ll have two – CK-4 and FA-4. CK-4 engine oils will be a direct replacement for the engine oils you’re using now. You’ll be able to buy the same viscosity grades and oil types (conventional, full synthetic, synthetic blend) you’re using now, and they’ll be “backwards compatible” to ALL current vehicles. They’ll just also conform to the new PC-11 standards.
The new FA-4 engine oils will be offered in lower viscosity grades and are designed primarily for next-generation engines to help maximize fuel economy without sacrificing engine protection. These FA-4 oils may have limited backwards compatibility2 and would be labeled as such. Oil companies and OEMs are currently testing these products in a range of applications to demonstrate without sacrificing engine protection
Wasn't there some thing on here a while back that said Ford did not back this type of oil? Seems I read this some where. Someone will pop in, maybe Stewart.
Wasn't there some thing on here a while back that said Ford did not back this type of oil? Seems I read this some where. Someone will pop in, maybe Stewart.
hmmm..if they were indeed selling ck4 in unmarked jugs that means Ive been running it since mid November and didn't even know it. I even purposely looked to make sure that it was marked cj4 and not ck4. Wish navistar would come out and say something regarding the use of ck4 in THEIR engines.
hmmm..if they were indeed selling ck4 in unmarked jugs that means Ive been running it since mid November and didn't even know it. I even purposely looked to make sure that it was marked cj4 and not ck4. Wish navistar would come out and say something regarding the use of ck4 in THEIR engines.
When I stocked up I did the same and thought it was CJ-4 then I read over on another forum some guys had analysis done and it was the new CK-4. Then I went to Rotella's site and looked up T-4 and sure enough it meets the new CK-4 spec, even though that info is not printed on the API label. I returned all of it except 4 gallons of the old Rotella-T that I bought very early in the year, different container and label too.
Argument could be made that it is CJ-4 because Rotella says the new stuff is backwards compatible and still meets CJ-4 specifications, but so far Ford does not agree.
Scroll about halfway down that page. The 10w30 has fords recommendation while the 15w40 does not. Besides viscosity what's the difference between the two?
Not sure, maybe the Ford list is out of date, or incorrect. Maybe they went by the API donut which, on the new bottle design, did not get CK-4 printed on it even though it is CK-4 according to Rotella's web site. Next time you are at the parts store take a look, I know I will.
Ya, they changed out the old bottles quick in the store months ago. I did the same thing and bought two oil changes worth thinking it was CJ4. I'm running it now, so I will change out at 5,000 miles and then run the valvoline premium blue synthetic 5w-40. It's comes on sale a lot at napa. I don't think it is crucial in the 7.3 vs the 6.7, but don't want to stress on it. Im not to concerned about running this oil for one change and I doubt any additional wear happened in such a short interval. It's all the phosphate and zinc levels. Do the zinc and phosphate additives work if guys ended buying bunch of the mislabeled jugs.
I don't know anything about the additives, haven't heard of them. I have been wondering about Ford's decision on CK-4 though, if it doesn't offer the same level of protection why would it only affect Ford/Navistar engines? If what Ford engineers found is true it must not be as good for other engines as well.