Forum Discussion
scottz
Jan 06, 2011Explorer
professor95 wrote:Cox89XJ wrote:
The repair guy also said he would use the highest grade gasoline because it is a lot cleaner than regulator.
That is a whole new can of worms. I often hear this, but it is a MYTH and totally untrue. Actually, using premium fuel in a low compression engine causes a slower fuel burn and can contribute to MORE carbon build-up. Premium has additional anti-knock properties for higher compression engines or engines with a lot of ignition advance. Our GX200 Chonda engines have a 7.5 to 1 compression ratio and are designed to run on 85 to 87 octane gasoline. Anything higher is a waste of money and could actually be harmful to your engine.
Now, let the counter comments begin! :B
For me it is a choice between 87/89 octane gasoline with up to 10% ethanol or 92 octane without ethanol. I chose to go with the higher octane non-oxygenated gas even though the Champion manual says not to use high ethanol gas. Sorry, I had to say it!
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,371 PostsLatest Activity: Mar 20, 2026