Originally Posted by BCRacing24
Starting your MH engine & generator and allowing them to idle for awhile is worse than Not starting all winter.....
I don't agree with that at all.
As far as the gen goes, Onan recommends starting and running with a load every month. This procedure is for the generator itself, not the engine driving it. It removes any corrosion buildup on the brushes. Too much corrosion and the gen won't output AC. When that happens it shuts down and then you're screwed.
As far as the MH engine, I prefer to leave it sit. Condensation is a byproduct of combustion and it's a nasty corrosive condensation. You can let it idle until the coolant reaches operating temps but without a load on the engine it's not likely you'll heat up the internals of the engine and the oil in the crankcase enough to dry out the condensation. You'll also fill the exhaust system with condensation that typically won't dry out when just idling.
Just my opinion and I'm pretty sure I'm not alone on this one.