big drop in fuel mileage - Page 2 - Chevy and GMC Duramax Diesel Forum
01-04.5 LB7 Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

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post #11 of 11 (permalink) Old 09-11-2011, 01:29 PM
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Join Date: Aug 2011
Location: Orange County, So. California
Posts: 76
Have to agree with the hash marks on the Chevy gauges. I filled my truck all the way up from just below a 1/4 of tank mark to a full tank fill up of 21 gallons. I went 79.6 miles before it moving off the Full hash.

I think the standard fuel tank size is about 26 gallons. I drive about 3 miles from house to freeway and about 9 miles on the freeway to work.

'04 Chevy 2500HD 4x4, CC SB LB7 (Cali-Emisssh poop)
Steering/Suspension: >Kryptonite Tie Rods >XRF Chassis- Ball Joints, pitman and idler arms >Cognito Braces >Rough Country Shocks >Reman GM OEM Steering Gear Box (replaced @ 103K) >Timken Wheel Bearing Hub Asseblies
Drivetrain: Stock
Exterior: Stock
Interior: Stock
Misc: Injectors replaced @ 74K (all 8) >Opti-Lube XPD additive
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