Posted 6/26/2026 23:03 (#11685687 - in reply to #11685630) Subject: RE: How important is api rating of engine oil?
Austin MN
It'll probably be fine for one round. The s in the SN rating means it's for spark ignition engines. The C in Cj4 means compression ignition. Different mixture of additives for the job required. The right thing to do would be get the right stuff but might not be feasible.
How important is api rating of engine oil?
