Join Date: Sep 2009
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I agree that the MT's are the biggest killer. The weight, wind and rolling resistance is greater than an AT. I would get better mileage with my MT's when the tread was worn down than when they were new. I also think that the leveling kit plays a roll. The more air getting under the truck hurts it's efficiency, especially at highway speeds. There is a reason Ford put those massive air dam's on the front of these trucks.
12 F350 SRW Lariat Loaded, Tux Black, 20x9 BMF SOTA's, 295/60/20 Nitto Terra Grapplers, 2-12" Pioneers in SPL2K ported box (moved rear window slider), Rockford components, amps-Rockford T1000.1 & T400.4, Audiocontrol LCQ-1
08 2500HD GMC LT CC Duramax, 7-9" Cognito, 35" Toyo MT's, 5" MBRP downpipe back, no kitty or DPF, EFI Live programing by Guy at Socal Diesel, Amp Research steps, Rockerflares, 2 10" JL Audio W3's in downfire Subthump box, Edge Insight