[mja1]

Hello all, I have a 2006 chevy silverado 4.3L 5 speed, single cab/short bed, thats been modified a lot, mostly for speed but I'm trying to go the other way now for better gas mileage.

I use the truck for commute to school, work, and play & moving cargo/hauling so it carries a bunch of gear about 100+ lbs worth all the time. Found a bunch of driving tips on here, and managed to increase my mileage (with stock tune) from 18mpg to now 21.6mpg (80% highway). When the truck was completely stock it was getting 22.5mpg at best (with a 3.42 rear and open diff). Thanks for all your tips on here, will be trying out new things and will begin tuning for mileage in a few weeks! My goal for the truck is 25mpg without too many crazy aero mods.

Truck has a vortec supercharger + intercooler (recently took off s/c it blew some bearings, was old and ran it at 12 psi, may rebuild later or go with a turbo later on), 3.90 rear gear, detroit trutrac, performance clutch, cold air intake, exhaust and a bunch of non-aero mods like a canvas rear seating area and a jump-bench seat (jeep style in the bed) that can carry 2 extra passengers when needed.