How long have you ran your generators before shutting it off? I ran mine 4days before shutting it off. It is bad to do that It is a 7.5 k Diesel Gen set. thanks
Some of the service trucks at my former truck shop are equipped with Onan generators (mostly Marquis 7KW's) salvaged from RV's. On several occasions, we ran those units for 8-10 days during remote recovery operations, refueling on the fly. When I sold the shop to our son-in-law, some of those generators had over 13,000 hours on them without major rebuilds, and all were working just fine.