Generator oil change/sythentic ?
Hello: I have an Onan QG4000 generator that is due for its first oil change (20 hours). I have the owner's manual, and while it lists the correct oil based choices on temperature, it has no discuss...
Forum Discussion
I use straight 30W Royal Purple, because I like the protection it provides at warmer temperatures. It's not good for below 0 temps though. My generator has over 500 hours on it an runs really well.
