Forum Discussion
fj12ryder
Apr 17, 2021Explorer III
NRALIFR wrote:I used synthetic oil in my Onan, for just those reasons.
As hot as air cooled engines run, especially those inside a sound deadening enclosure, I will never understand the hesitation or reluctance to recommend synthetic oils. They’re not even that much more expensive anymore if you shop wisely.
:):)
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,344 PostsLatest Activity: Dec 22, 2025