Join Date: Feb 2008
Location: From Ohio, live in Havelock, NC
Thanked 40 Times in 32 Posts
We need more info. 2500 or 3500, SRW or DRW? How fast do you drive empty and how fast do you drive when loaded? How much weight are you calling loaded?
What are the fuel mileage numbers you get empty and loaded? Are you going off the dash reading for mileage numbers or are you doing the math at every tank fill?
I'm running my truck, a 2500 ECSB SRW LBZ. Empty on the highway I can get 22+ MPG when keeping my speed under 70mph. If I go over 70mph the mileage drops drastically.
Loaded with 6-7,000 lbs (a car ona trailor) I can get 16-17 mpg at the same speeds, again if I go over 70 mpg it goes to *****.
Loaded with 13,000-14,000 lbs I can get 12-14 mpg depending on terrain, speed, etc.
2006 Chevy 2500HD LBZ/Allison ECSB 4x4 Greystone metallic
S475, 3" boost tubes, 5" intake, Custom Y-Bridge
Tuning and Transmission by Diesel Addiction . A special thanks to Dustin for all the help.
12.42 @ 106.3 (stock injectors, CP3, and turbo, no drugs!)
7.83 @ 86.2 1/8th
531 RWHP / 940 RWTQ 10/11/08 on Wayne's Dyno in Jville NC