What kind of oil should I put in my Honda GX390 T2 engine? I don't have an official manual for it because it was given to me as a gift.
The technical data of this engine is available on Google, what is the problem to look there? Oil System – Lubrication system: Forced splash / Oil type: Honda 4-stroke or equivalent (SE or later) / Recommended oil: SAE 10W-30 / Oil capacity: 1.1 L (1.16 US. qt., 0.97 Imp. qt.). My neighbor had a GX390 T2 engine, I can check with him.