Well first of all, welcome to the forum!!! Is that hand calculated? The dash will lie sometimes and say you are getting better/worse than you really are. Second, when did you last change your fuel filter? Third, run some 2 stroke oil in at every fill up, its getting me better mpg
CURRENT: 2006 Silverado 2500HD 4x4 crew cab (black), 20" chrome Diamo 16 Karat wheels wrapped with 32x11 Toyo Mud Terrains, 2" wheel spacers, Bilstein 5100 series shocks, Banks Ram-Air Intake, custom straight pipe exhaust w/5" tip, EGR Delete, PPEI dsp5 tuned by Kory, Edge Insight moniter, 8k HIDs in head/foglights, Limo tint, 7" Pioneer Double-din, (2) Boss Phantom 12s in custom box, more coming soon...
SOLD:2002 CC/SB Duramax LS 4x4 LB7, Solid axle conversion, 14" lift, 20" XD Diesels (black), 39.5x16.5x20 Pitbull Rocker M/Ts, ATS E-power 160HP/360TQ Tune, Edge Attitude Moniter for Guages, Amsoil Custom Intake, PPE Boost Valve, Custom 5" Straight pipe, Limo Tint everywhere, HID 8k heads, Clarion 7" flip out, (2) 10" subs