Bubble Top Van vs Roadtrek Style Gas Mileage

I agree about the handling. I avoided highways... and a passing 18 wheeler was a lesson in white knuckle driving. I would never own another one... in spite of the wonderful inside height and extra
storage.

I have a coachmen tm 18. Best I've seen is 16, worst 11, 13 14 is most commin. My bubble isn't quite so high but close.

What I do get is blown around in the wind!

I had a 2004 GWV Classic Supreme and over three years, it averaged 14-15, if I drove at highway speed limits. If I went 55 mph, I could get better. This was the small Ford.

With my current 2015 Chevy RT, I have averaged 17 at highway speed limits.

Different era vans... and different manufacturers, but comparable results I think.

Great question. I was hoping for an 18 mpg target for a Class B before buying. Most affordable B I found was what I bought, a 1996 Coachmen with that distinctive over-cab bed. Chevy V-8. I love that style for storage and pivoting area inside, but ours is a tight fit for sleeping. Anyway, I am struggling to get 14 mpg. Looks like 13 is about what I get so far, and with a/c use, it can be under 13. But just had a major tune up to pass a failed emissions inspection, so now I hope to somehow get to 14 mpg or higher. Will need a few months to know. I know I have a lead foot at times, I may try some 55 mph driving to see how that helps.