Generator run time

Thanks to all. That is what I have been doing and will tell my friend that is what he should be doing also. Thanks again.

Read the info on the gen you have. Mine says to exercise once a month at 1/2 load or more for an hour. So that's what I do.
(Side note) a/c is what I use to put gen under load, it gets really cold when it is already cold outside to begin with.

Best to exercise it with a full load, per the Cummins-Onan tech that just did the 50-hour oil change service our 10Kw genny. He recommended once a month for two hours and said running the AC while we're going down the road is a good way to do it.

Every manual says the genset should have a load on it when exercising.....so, yes...run the A/C, make a cup of coffee, heat a danish in the microwave then watch AM America on TV....enjoy.....Dennis