Posted 3/2/2015 10:44 (#4425093 - in reply to #4425074) Subject: RE: Engine oil question
East of Dowagiac Michigan
As a shot from the hip, I think ci-4 is the older spec and cj-4 will exceed it, making your oil just fine for use in most engines. I did ask similar ??? 30 yrs ago.
Engine oil question
