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Open Roads Forum  >  Class C Motorhomes  >  Class C

 > E350 vs E450 chassis pros and cons for a short 24 ft class C

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ron.dittmer

North-East Illinois

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Joined: 02/26/2007

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Posted: 05/14/19 02:14pm Link  |  Quote  |  Print  |  Notify Moderator

I have kept "Very Accurate" records for many years of our E350 described below, towing our Jeep Liberty, our MR2 Spyder, and also without a tow vehicle. I calculate trip average from the moment we leave home to the time we return home. All trips involve lots of driving from the Chicago area to USA national parks and such. Most RV driving is highway, most local driving is with the tow vehicle when we bring it.

Generator usage is NOT considered so actual mileage is better than stated.

- 2007 E350-V10 DRW Super Duty chassis with 55 gallon fuel tank.
- Aerodynamic B+ configuration with gently angled transition walls
- Dimensions: 23'-8" long, 93" wide, 9'-10" to the top of the a/c unit

Gas Mileage (5000-6000 miles driven per trip, practiced cruising speed ~67mph)
9.2 mpg towing Jeep Liberty 4x4 @ 4500 pounds
9.5 mpg towing Toyota MR2 Spyder @ 2200 pounds
10.5 mpg NOT towing

I stopped monitoring of fuel economy because the numbers were so consistent from one trip to another. I learned what I needed to know and no longer track it.


2007 Phoenix Cruiser model 2350, with 2006 Jeep Liberty in-tow


rjstractor

Auburn, WA

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Joined: 01/20/2003

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Posted: 05/14/19 08:03pm Link  |  Quote  |  Print  |  Notify Moderator

Gjac wrote:

Bea PA wrote:

We now have a 24V on the E350 Ford chassis, only complaint is that there is not enough knee room for my husband. We have towed our almost 4000 lb Saturn Vue on short trips and our Goldwing trike on a trailer thousands of miles. We get the same gas milage as back in 2000 when we had a 32 ' class A
Hi Bea, it seems like a lot of people I talk to say the same thing. I get on average 8.6mpg with my 33ft Class A 454 TBI and thought folks with small C's would do better but most report about the same. Do you drive faster in a C because it is smaller,front end being less aerodynamic?


Many class Cs are just as wide and tall as class As. Mine was a full 8'6" wide and overall height with the AC was well over 11 feet. The large overhang has terrible aerodynamics. That's why the "full" Cs, regardless of length usually get 7-9 mpg, maybe 10 as a stretch, and the more aerodynamic "B-plus" Cs get 1-2 mpg better.

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