Class C Diesel MPG Question

I have a 2009 Coachmen Concord 27.5 ft on the E-450 with the 6.4 and we get around 11.5 to 12 at 55 to 65 MPH pulling a HHR. Our unit has also got the propane system but we have never used it. Have owned this unit for over 3 years now with O problems and lot of fun. Leaving in 2 weeks for our second around the USA in 2 years. Love my class c diesel.

My 2008 F 550 with the 6.4 PSD comes in at 8.0 to 8.5 without towing. My situation may be different than yours though. I have the 4x4 version, 4:88 gear ratio and the 19,500 GVWR.

The lighter E series van chassis without 4 wheel drive and the higher axle ratio should come in about 10 mpg

qtla9111 wrote:
What would an approximate MPG be on a 27ft Class C with a Ford 450 diesel? I realize there are many variables. Thanks in advance.

Depends on what year E450 Ford diesel engine. From all the reading and reports from those particular Ford diesel owners - the consensus is as follows: The 7.3 PSD yields a solid 10 to 10.5 mpg, and the 6.0 PSD yields a solid 11 to 12 mpg on the highway mostly driving of them. I'm not up on the 6.4 PSD or even if the 6.7 PSD is even installed in the E450s nowadays.

Hi,

My old 1987 6.9 liter Ford did about 12 mpg driving at 55 mph. It was 27 feet and an E-350 chassis.