Quote Originally Posted by Retz View Post
I noticed that most FS oil, the API rating is usually SL/CF or SM/CF. Why is it that there is no FS oil (correct me if im wrong) that is rated higher than CF like CH-4 or CI-4 for diesel?
Sir, madame FS oil na CJ-4,CI-4,SL rated....

pag ang oil kasi ay CI-4 only, usually semi synthetic lang....

Mostly the FS oil ay either Cj-4 or SN specs na.... updated na kasi ang APi rating nila...