The newest Full Size 1/2 Ton Truck Comparison in Popular Mechanics rated the Nissan Titan not only #1 in the comparison overall, but also #1 when it came to gas mileage @ 15.7 mpg.
http://www.popularmechanics.com/auto...06.html?page=2
Like others have already said, if you're looking for great gas mileage, go buy an econo box. Sorry, but that's the reality. Just play Metallica - Fuel everytime you get into the truck and you'll forget all about gas mileage!

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2006 Granite Crew Cab SE 4x4 w/ Big Tow
285/70/17 BFGoodrich All-Terrain T/A KO
AEM Brute Force CAI
Sway-A-Way Coilovers w/ PRG UCA and Sway-A-Way w/ Reservoir Rears
TomTom One XL Navigation
AMSOIL Signature Series 0W-30, 75W-140 Severe Gear and 75W-90 Severe Gear
Magnaflow 18" muffler swap (PN: 12256)
2* Timing Advance
PRG Shackles (
Still need to install these...)PowerSlot Cryo Rotors w/ Hawk LTS pads from Frozen Rotors