Our 2015 ACE 30.1 with the generator behind the driver side front wheel has never shut off. It has the solid door, I think some have louvers but ours doesn't. This includes driving all day and all night in a rest stop in 90 deg. heat. I don't have the MH here now so can't look but the owners manual has a chart with several options for oil viscosity according to temperatures. I just changed oil in ours but don't remember what I used. I have a generator, motor home, truck, three lawnmowers and a motorcycle I change oil in so I keep it written in the owners manuals. IIRC the generator called for an oil change at either 20 or 50 hours so a change sounds correct. Jim.
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