07.5+ LMM Duramax PowertrainDiscussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect
I get about 15 around town and 17 on the interstate. With 325/65/18 Toyo A/T. And that's with my foot in it
__________________ 2004 GMC K&N Intake 4" Dyna Max Exhaust (No Cat) Hypertec Programmer 6" Sky Jacker Lift 18" Helo Max Wheels With 325/65/18 Toyo Open Country A/T Tires
Believe it or not my '03 lb7 got 20.6 mpg between Houston and Dallas. 75 mph avg. On 38" tires, Edge juice w/ attitude set at level 3.Engine turns 2000 rpm's @ 75mph.
I have an 2007.5 it has 6" lift with 35" tires. The truck is all stock and gets 10.7 mpg according to the on board computer. What gives?
For starters you need to hand calculate to get accurate numbers.
That being said, I bet your truck is closer to average than these other guys who are seeing 18 mpg.
My truck could hit 20 mpg with stockers now I'm down to 18mpg rolling on 275/65r18. I bet I'd be lucky to see 12 mpg with 35's.
__________________ Pictures: http://www.duramaxforum.com/forum/wh...look-sexy.html 2007 LBZ 2500HD CC SB 4x4
Leer canopy, Aries Oval step bars, 18" AR Cannons wrapped with General Grabber HTS 275/65R18's, Bushwacker Pocket Flares, and 2" drop shackles in the rear
Love this truck....HATE the fuel economy yea yea, I know it's a truck, and YES I want the same mpg as a Civic
i think becuase he's running bigger tires he gets lower rpms at 75mph than you would with smaller tires!
__________________ the 06 chevy cc sb is pretty much stock except for a few add ons: edge evolution,corsa 4"turboback exhuast,diamond eye turbo direct pipe,egr blocked,AFE stage 2 intake ,ppe race valve,titan 52 gallon fuel tank,bd exhuast manafold,Snow performance stage 2,Air Dog 150 lift pump,industrial injection dual feed line,ATS Copilot,Mag Hytec trans pan and rear diff,fluid ampr balancer,hid lights,Light 175 Force ,Recon led internal cab lights and 3rd brake light,ipcw led tail lights,baker bright box with fogzilla kit,blistein shocks,autometer cobalt guages,tie rod sleeves and braces,access/larado roll up bed liner.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.
Linear Mode
