Nice to get all the responses. I didn't want this to turn into a diesel vs gas debate, as I have had diesel trucks for over 20 years, and several friends with diesel pushers. I understand the advantages of diesel, and the disadvantages of all the emission requirements on the newer diesels.
If I have to go slower uphill than a diesel pusher that is OK. I just want to be safe coming downhill, without an engine brake. Typically, I travel wolf creek and red mountain (Ouray to Silverton) pass once per summer, and Eisenhower pass 2-3 times per summer.
What interests me is that gas class A's are available in smaller sizes than diesel pushers. I now have a 40' fifth wheel, and it is hard to visit state and national parks.
