Hello, we have an 07 Winnebago Voyage, bought new. Has about 7000 miles on it. When we don't tow a vehicle, we get about 7 mpg, with a vehicle (09 GMC Acadia) we get 6 to 6.5 mpg. We have done all the obvious, lighten our load, drive below the speed limit 5-10 mph, and no jack rabbit starts or stops. We keep hearing people with Voyages (2 anyway) that say they get 9 -11 mpg, even pulling a vehicle. We rather doubt that, but would like to hear from others with an 07 Voyage OR a 34 ft RV with 2 slides, and gas Workhorse engine.
We heard that it might be an 02 sensor but also heard the 'check engine light' would go on if that was the case. We plan to do a visual on any wires in the spark plug area for heat damage etc.
Suggestions welcomed and please tell us if you have a like model what your mpg is.
