lights flashing on the oven this morning, power went out last night, have no idea if backup gen went on, slept through it. All good.
Changed oil in Honeywell 9000/7500 portable gen for first time, about 20 hours, unit was bought until I could get a whole house Generac 22kw put in, which is now up and running. Ran the gen for about 8 hours this week, powering up a travel trailer a/c that also needed to be run. Mobil 1 10/30 in a quality Chonda gen, started right up with electric start, though like all of us, gosh I wish these cold little engines would not zoom to 3600 rpm so fast.
I had a Honeywell like this (likely very similar to Champions and others) about ten years ago, loaned it out, folks ran it all night and all day with almost no load on it, carboned up the cylinder head and then it wouldn't start. So I always run these things with at least 15-20 amps pulling on them. Either a couple of electric heaters or this rv a/c did the trick last time.
Was pleased that putting this gen away dosed with Sea Foam and Stabil, plus non ethanol gas, really does seem to make it a reliable starter. Now I dump the rest of the dedicated five gallon gas can I keep for the gen into the mowers, and put fresh gas in the can and then refill the gen with fresh gas. I doubt I will ever need it, unless the whole house gen has an issue, but belt and suspenders works for me.
I change the oil in my Generac 22kw once a year, usually Valvoline Ultra synthetic or Mobil 1, whatever I have.
Air filters never are dirty. Do clean air filters after five years need changing? I do, but wonder if I'm throwing my money away. You know all those maintenance services companies them out whether they need it or not.