Dodge Ram 2500 QC SB SRW 4x4
5.9L Cummins w/3.73 (stock) gears
121,000 miles (as of Oct 2011)
No EPA ratings for MPG on my truck, none at Edmunds or Intellichoice either. Best I could find is a road test at consumerguideauto.com that rated a 4WD, Manaul Trans Dodge 2500 w/Cummins at 15.3 (combined).
5" Turbo-back exhaust with free flow muffler (RPM Outlet)
Banks 3.5" Ram Air Inake Manifold (elbow)
K&N Air Filter (in OEM stock box)
ARE Cab high bed cap or SolidFold Tonneau
Quadzilla Max Mileage Tuner
Michelin LTX M/S2 (Low Rolling Resistance) Tires 235/80-17 (which are slightly taller and narrower than the stock 265/70-17 size).
Bully Dog GT (Gauge/Tuner) - Set to 'no power' for the trip
Flex-A-Lite Electric Fan
aFe Exhaust Manifold
Fully synthetic (Rotella) motor oil and Royal Purple gear oil
At most fill-ups, I put in some Power Service (white or grey) or Lucas Oil Fuel treatment.
Air deflector (stock) under bumper
Locking front hubs