My Kymco manual recommends 10W-40, SJ-rating. The "J" part of the rating is the latest version. Over time, the "J" may change to "K" etc, but that's not a big deal. It's the "S" that's important. It's a plain, unadulterated motor oil. I can find this at any auto supply store.
Exactly. If the manufacturer recommends it, it’s sufficient. If a person wants to use oil meeting a higher standard, fine. But it’s not necessary.
Sent from my iPad using Tapatalk