Originally Posted by RyanH1
I�ll probably get chewed up for this very non-scientific answer but...
I prefer to really not mess around with the way the things were done back in 2001. The 7.3 was engineered, tested and specified to run a CH-4/CI-4 oil. There was a ton of hubbub over the new CJ-4...
Thanks for taking the time to post the results for the CK-4 oil. I am sure there are some folks on the fence and this may help ease their mind. DNewton may be a tad gritty but means well and has some good data to share.
Originally Posted By: SavagePatch
Here's the first UOA that I've taken from my used 2015 Ram 1500 EcoDiesel. I ran the T6 0w40 over the winter months for 5.5k miles. I did a lot of remote starts in the mornings before work. I wouldn't say that where I live is extreme cold but it does snow here...
Originally Posted By: racin4ds
Originally Posted By: Bighorn2500
Valvoline Premium Blue 10w30 Synthetic Blend Heavy Duty Diesel oil $13.69 at Menards. We run that in everything from tractors to OPE. May want to look at it for your truck in the future.
I'd love to try it but can't find it...
Originally Posted By: ag_ghost
Originally Posted By: motor_oil_madman
Where do you find it?
https://www.thelubricantstore.com/mobil-delvac-mx-15w40-12x1
Here is another site that may be of help on what you are looking for
https://agcrazy.com/122215-mobil-delvac-mx-f2-15w-40
Originally Posted By: Invasivore
Just run UOA or 2 before running out. Then switch to CK-4 to see if there is a major difference. I doubt you will see any change.
X 1
That's what I would do as well. I bought seven cases of the Schaeffers 15w40 CI-4 about 10 years ago and down to my last case...