I have had my 2KW Hondas for about five years now and they still going strong. When they where new I followed the maintenance real good then it slacks off some as time went by... Mine don't have a hour meter so I just guesstimate. I think my written schedule for changing oil is 100HRS of run time.
I have never dealt with a built-in type generator - My generator only gets run around 3 hours a day when camping off the power grid. I would imagine yours is probably more like 10-12 hours a day maybe as built-in generators can probably sneak more generator run time at camp grounds with generator run time restrictions. No one can tell if it is a generator or the truck motor running.
Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA
RETIRED DOD DOAF DON CONTRACTOR Electronics Tech 42YRS
"We're burning daylight" - John Wayne
2008 STARCRAFT 14RT OFF-ROAD POPUP with PD9260C and three 85AH 12VDC batteries
2010 F150 FX4 5.4 GAS with 3.73 gears - Super Cab - Towing Package - 2KW Honda EU2000i Gen
K9PHT (since 1957) 146.52Mhz
"We always have a PLAN B"