Recomended oil for Onan 4KW generator
Hi We have an Onan model 4KYFA26100K 4 KW generator in our Class C and were wondering what is the recommended oil type for it? Thanks.
Forum Discussion
I use what is specified in the owners manual with regards to viscosity. But I can't recall off the top of my head what that is. I recall it is a straight-weight oil. Given we don't camp in winter, our see no reason to deviate.
I use full synthetic in our 2007 Onan 4000 because synthetic does not burn as easily as conventional oil. So if there is an oil-burning condition, the full synthetic provides me a little more safety margin. If a catastrophic failure occurred, for example the oil drain plug is loose and falls out, the residual coating of full synthetic will provide a little more lubrication while I am wondering why my generator got clanky and decide to turn it off.
If you wonder, the answer is "NO", that did NOT actually happen to me.
I use full synthetic in our 2007 Onan 4000 because synthetic does not burn as easily as conventional oil. So if there is an oil-burning condition, the full synthetic provides me a little more safety margin. If a catastrophic failure occurred, for example the oil drain plug is loose and falls out, the residual coating of full synthetic will provide a little more lubrication while I am wondering why my generator got clanky and decide to turn it off.
If you wonder, the answer is "NO", that did NOT actually happen to me.
