I want to get everyones opinion on what they think the absolute best mileage a Duramax can get is.
Lets have a few factors that are constant. Someone who drives the speed limit, doesnt race, doesnt tow, drives 50%/50% city/highway, keeps tires at 60psi, synthetic throughout, etc.
I want to talk hard parts, cams, heads, overdrive units, etc.
What mileage could a guy get with and custom EFI tune solely for mileage, aftermarket cam (2 mpg increase in a cummins), Gear Vendors OD, Built tranny for effeciency, and a FASS
to keep the fuel free of air.
I know the initial cost would be outrageous but what kind of mileage could this truck get? I would like to guess at 24-26mpg.
Lets hear some other Ideas.
2003 GMC LB7 DMax/Alli, 4" Exhaust w/ Muffler, 6" Rolled Edge Tip, AFE Drop-in Filter, 16x9 Moto Metal 951's, 285 BFG A/T, Debaged, Full Tint Job, Denali Grill, B&W TurnoverBall, 7" In-Dash DVD Toushscreen, Clear Headlights
Wreck' em Tech
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FOR SALE $23,500