One thing bad in reality about auto start generators is the immediate
load factor on a cold unlubbed motor. The motor hasnt warmed up yet,
internal tolerances will cause more wear when cold due to dissimilar
materials. Also although probably figured in some designs Oil filters go
into bypass mode , on cold thick oil at high rpm. 3600 is high rpm.
Letting a manual gen warm up 5 minutes at idle is smarter as a majority
of wear occurs on cols start, cold running, high load, incomplete oil
circulation.