| Are both hand calculating the mileage or using the DIC on the dash. The best way is by hand the DIC on the dash is always way off for me.
__________________  08 Chevy Silverado 2500HD Crew 4x4
6" Fabtech Lift, Pro Comp 35" Tires Extreme A/T & wheels
ATS Extreme Trans w/CoPilot
Quadzilla Stealth 2
4" Turbo Back Silverline System
BD-Performance Exhaust Manifold
Kennedy Diesel Air box Mod & Resonator plug
6k/8k HID Headlight Upgrade |