MPG

We have a 2007 GMC Sierra Duramax Diesel with 6 speed Allison trans, crew cab, 4wd, long bed pulling a 2009 Carriage. Total package weighs in at 22,700#. Plus, we have kayaks on the roof... Wind resistance is mainly what kills our mileage. We've gotten as high as 12.5 without the wind, but normal is 9.5 - 10 at 65MPH. Like others, we try to keep the RPMs at 2k or below if terrain allows.

We have a F-350, 6.0L diesel hauling a Lance 1811 and average 11.5 MPG without head winds..Without the camper we average 16 mpg

We have a 2004 Forest River Tsunami (40 ft) motorhome, pulling a 2003 Toyota Tundra, loaded with a 2005 Honda Goldwing. On pretty level ground, we figured about 9+ MPG (diesel). I was suprised!

Ken & Kathy

We have an 2006 Winnebago View, 24' Class C, on a Sprinter chassis, powered by a 5 cylinder Mercedes Diesel engine. I have gotten as high as 20 mpg. That was during a 200 mile run along highway 98, at 55 mph, in the Florida Panhandle. We didn't have our car with us on that trip. Going slow seems to make a big difference, guess I should try it more often. Normally running without the towed vehicle, at 62-64, we get 17 to 18 mpg. Towing our 2009 Subaru Forester, about 3300 lbs, we get 14 mpg. Now on those windy days the mph will drop 2 to 3 mpg.

We have the 2006 45' Tiffin Zephyr with 4 slides with 500HP Cummings and tow a 2002 GMC Envoy. We drive the speed limit and get anywhere between 6 and 7 MPG.

Just returned from 2 weeks in Florida, MacDill. Have a ford 460 engine in a 35 foot Class A. Was getting 6 miles per gallon, but was also running way too fast, in the 70's, pulling a toad. Slowed down, due to a rude awakening, now run around 60 - 65 continously, am getting 7.5 to 7.8 per gallon. Slower speeds increase your milage, also, makes things much safer. Motorhomes, (most) are not build for speed. From someone who's been there, done that.

D.Bentley