Corbase Cummins Power Generation Motorhome Trailer RV and Automotive Engine ONAN SAE 30W Oil (Quantity 4)

I had my RV Cummins generator oil changed a year ago and used this Onan 30W for the oil change. I haven't really used the generator much since then, but just cranked it up and it runs super quiet now, and shows still full of oil with no need to add any. The dip stick looks almost clear with a bit of honey color, unlike the old oil that was in it (before the oil change a year ago), that was very dark in color. My generator obviously loves this oil!

I've bought it many times in the past. The onan generator starts and runs after got a tip from a Virginia Beach mechanic from Atantic Cummins years ago about using Stabil and draining the gas. That is a great company! It is amazing that someone makes it after Onan got bought out.

Hard to find, but Amazon has it. Great oil for my onan rv generator.

This is the oil that onan recommends and these generators are too expensive to take a chance, oil is cheap insurance to keep things running properly.

Product as described, fast shipping.