12mpg? Man I love my 5.9...... 388 miles on 18.7 gallons of fuel is what I am averaging with my old truck... I don't think i will updating anytime soon...
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99 Quad Cab 2wd 5spd All stocked with Farmboysdiesel Parts
NHDRA #4495
Last edited by Boosted : 10-23-2007 at 06:42 AM.