[folivier]

I usually run 180 but will go up to 200 if ambient temp gets over 95. Crossing Kansas after the rally when ambient temp got to 100 the generator got over 220 with all 4 a/cs running. I shut off the back 2 and temps came back to 200 quickly.
Do you have an overflow tank on your generator? I added one I got from an auto parts place. Makes it nice to quickly check the coolant level.