Bird
Epic Contributor
RobertN, in 1973 I bought a new Winnebago motor home that had an Onan generator for auxiliary power (gasoline powered, air cooled generator, of course). Very shortly after the first oil change, I noticed the exhaust was smoking and I was having to add oil. I took it to the authorized Onan service center in Dallas in July and when I went back to get it, they had left it running in the heat for 24 hours, after simply changing oil in it; no smoke. I had used the same 10W-30 oil that I was using in the chassis engine and they told me that was the problem. Even though it was a gasoline engine, it needed to have a motor oil rated for diesels, or as they called it "diesel lube." I never had another problem with that generator after I changed to a motor oil rated for diesels.
Bird
Bird