The CI4+ that doesn't meet CJ spec is hard to find because Chevron quit making it a year or so ago.
AMSOIL INC. produces the CI-4 PLUS on a continuing basis, and is available anywhere AMSOIL is sold. Personally, I sell over 40 gallons per week!Where did you get this info?
I have seen the internals of a 5. 9 after being subjected to 20k mile OCI's and it wasn't pretty
Well, I have ran the AMSOIL in all of my Dodge/Cummins trucks, starting with a 1991 model. Here is a picture of one of mine after running the AMSOIL for over 150,000 miles. You must have had something going on with your vehicle, if it is as you state.My local Chevron distributor still sells Delo Multigrade 15w-40 CI-4+ in drums and pails. They buy in bulk and then repackage into the smaller containers. As of yesterday, they had not heard of anything concerning Chevron and the discontinued production of the multigrade oil. This is why I would like to know where Joe got his info. so that I can pass it on to them to look into the matter further.
As for Amsoil, my personal opinion is that it is not worth the extra cash. I have seen the internals of a 5. 9 after being subjected to 20k mile OCI's and it wasn't pretty.
No, as the CI-4 and CJ-4 are a "PERFORMANCE" specification from the API, and as such, a petroleum or a synthetic oil can have a CI-4 or CJ-4 specification.If you go to a synthetic, any synthetic, does the ci4 issue go away ?
I thought that ci4 had to do with lubricity and that is why the older trucks need it rather than cj4