Join Date: Apr 2009
Location: South Puget Sound, WA
Re: 03 F-250 drinking the diesel
I towed my 7000lb bumper pull RV trailer 600 miles this last week. On different tanks I would be at 15 and then at 10 mpg
You have two reasons for the variation. One is fuel quality, especially in the midwest they have poorer fuel and maybe even some winter fuel still. More importantly though is headwind/tailwind. Especially with a camper, your frontal area is huge and a huge amount of fuel is spent just pushing that thing through still air, add a 30 mph headwind and the fuel consumption goes way up. A 30 mph tail wind and things will improve.
These things suck fuel when working.
My last 150 miles or so was into a steady headwind and my OEM power level truck was struggling.
2000 F350 SRW, 4wd, CCSB, PSD
Lowered rear end to F250 height, 4" exhaust w/ muff, foil delete, AIH delete, Ford AIS intake, tru-cool trans cooler, autometer under dash pod and gauges, Mile Marker hubs, 04 headlights, soft tonneau
18' 10k rated PJ car hauler
26' 7500# Creekside RV Trailer
Kioti CK30 tractor