MPG on a 2000 Monaco Diplomat 315hp (ballpark)

We get about 7mpg average. Last tank, we got 9.1. SPEED! I kept the bus at 55mph, and what a difference. Mostly, we average about 60mph on interstates, and 55 on local 4 lane roads.

I agree with what people have been saying. I just want to add that the big killer for me seems to be wind. THis summer we drove across MN and ND and it seemed like there were 30 MPH winds the whole way. It seems to knock 2 mpg off me at 60 mph.

jeff

8 mpg, approximately $4.00/gal. $.50 per mile. Just got back from a 1850 mile trip spent $875. 50 cents is a good number (as a quick gauge), I'm not sure if the rest of the logic works

JimM68 wrote:
motorhomes get about 50 cents to the mile. Gas or diesel it matters not. $2 a gallon or four, still fifty cents a mile...

:h

motorhomes get about 50 cents to the mile. Gas or diesel it matters not. $2 a gallon or four, still fifty cents a mile...

I agree it could be a little better, but for a new member I'd rather have them happy with the mileage if they buy it and a lot depends on how you drive it and how much brake you use.

I think you will do a bit better with your older Diplomat that the 42' Dynasty...thinking closer to 8.5 at 65 in the West.

Ivylog wrote:
10 at 45 mph, 8-9 at 55, and 7 at 65 in the East. Take 0.5 off in the western mountains.

X2

Actual experience will depend on how you drive, the kind of roads you are on, and the weight of your coach. But, 8 to 10 is a reasonable estimate as mentioned above.

Haha, heck that's better than my old 1978 class C with the 400 4 brl carb.

I forgot to mention its a 38 footer.