Join Date: Jan 2013
Location: North Plains, Or
I don't understand how so many of you guys get such good mileage. Makes me wonder if my truck and everybody I personally know with duramax pickups have something wrong with them. The tires on my pickup are about 36" tall and the best I have ever got is 17 mpg. I went on a camping trip one time pulling a 30' camp trailer at about 8,000 lbs and I drove 1000 miles round trip. I used exactly 100 gallons of fuel on that trip. My math says 10 mpg. I have a friend with an LB7 02' 1 ton that does hot shot loads for a living and he gets 8 mpg average. My brother has a bone stock 06' LLY and he gets 15 mpg average. I am confused.
07' Chevy Silverado LT3 ccsb LBZ. 8" Bulletproof lift kit(junk), Fox shocks, EFI Live by Kory, Edge CTS Insight, 4" Silverline downpipe back exhaust, PPE FPR shims, PPE fuel rail fitting, pcv reroute, resonator plug, Transgo jr, S&B Intake, Amp steps, 20" XD Racing wheels, 36" Goodyear Duratrac tires, Air Lift rear air bags with wireless compressor, billet grill, debadged, Caddy gauges.
77' Ford F-250 factory highboy. 460, hooker headers, 3" flowmaster exhaust, MSD ignition, Comp Cam, Edelbrock high rise intake, Holley 750 cfm double pumper carb, Holley fuel lift pump, Autometer gauges, 3" lift kit, 38" Toyo tires, 18" Weld wheels.