Running AC while driving

Impact to MPG is nominal considering you are driving an apartment. The gen is there for a reason, to provide power when not connected to shore power. Run it, they like to be run. Your dash AC will sruggle to cool anything but the first 4 feet of the coach. Then gen and AC are more efficient at cooling the entire MH - hence why you have them. You and those you travel with will thank you and your coach will take less time - no time actually - to cool down once you arrive. I love to read posts about people that put up shower curtains and all sorts of things to cool a 6x6 area. How much do you save - if any - and why did you buy a MH with a gen and central air? I mean what's the point? I run the gen in ours about 90% of the time we are travelling. I don't boondock so it's a good time to excercise it. Kid can watch TV, we can use the microwave, central air, outlets and I don't use LP for the fridge. I don't hear it and I haven't noticed any real impact to mpg. Or at least anything to trade the comfort and convenience of having power. I mean that's one of the reasons I bought a MH. SO we could travel in comfort.