New Shell Rotella CK4 Video
Looks like Shell Rotella will be releasing their new API CK4 oil next month although it won't have the API CK4 label until December. Link Link 2
Forum Discussion
jus2shy wrote:
Huh, I wonder if they cut back on the additive package like they did with the jump from CI-4 to CJ-4. But it seems like they're going to increase sheer stability and oxidation stability some how. I wonder how they achieve better sheer stability and oxidation. Are the new specs at minimum synthetic blends? I watched the vids and marketing stuff, but no engineering techy geeky stuff for me to take-in *Sigh*, thanks marketing department.
I wonder if any manuals will change to allow using the new FA4 spec that they're starting. I know for transit fleets, Cummins ok's the use of a 10W-30 oil (and the buses average a GVW of 26000 lbs all day when they run due to passenger loads). However I wonder if RAM will allow it. Ford will probably allow FA4 oils since the Powerstroke already has a 10W30 rated oil they recommend. I wonder if GM will also hop on the bandwagon, they've been pushing the 5w20 and 0w20 oils for quite a while as well.
Since our diesel fuel sulfur content has not changed and the emission systems is basically still the same I would think this new CK4 standard builds on the CJ4 rated oil, which has proven to be very good.
What I'm interested in is what is the difference between a CK4 10W30 and a FA4 10W30 in terms of additives. As far as I can tell the FA4 will have improved viscosity stability.
