Shell Rotella conventional 15W-40 formulation updated to CK-4

[Tinman]

This is an interesting thread, and of particular interest to me. I just ran out of Delo CI-4+ and went ahead and stocked up on CJ-4 because the CK-4 is new and unproven in the real world. My suspicion is that is will be good oil. I have seen several cases of antidotal evidence of cam issues with the lower zinc oil. This always gets my attention b/o I run 90lb springs in the 06. However, (as has been stated) there are billions of engine hours out there with no issues. So I'm not sure what to think. I'll be keeping an eye on the UOA with the change to CJ-4 and if there is any evidence of increased wear, I'll use a zinc additive.

 

[ENafziger]

For anyone interested, there will be a webinar today at 1:00 p.m. ET concerning the new oil formulations. Dave Taber, Senior Scientist at Phillips 66 Lubricants, will be presenting. This will likely be a very informative briefing for any who are interested in this type of thing.

http://www.globalspec.com/events/eventDetails?eventId=1198

--Eric