My Four Winds Hurricane has a Onan generator 5.5 there is very little to servicing it as it has no oil filter, i just change the oil, i wonder where the time goes but now 14 years old and no issues, Hope you are enjoying the RV they are so different to euro vans with many advantages and it has to be said disadvantages, over the time i have had the RV i have made a lot of changes, latest was to fit a 5 kw Chinese heater, it makes a big difference to the comfort in the RV as you know the stop start of the furnace isn't ideal. and the continuous heat is nice, wish I had done it years ago, it is also easy to run, the RV heater uses a lot of battery power and gas although I fitted a much larger LPG tank to reduce visits to refill, RVs are designed to be in campsites with a over night stop in between, however we are rarely in a campsite hence the many alterations to the RV to accommodate out style of use . Enjoy