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Go Back   Chevy and GMC Duramax Diesel Forum > Chevy / GMC Duramax 07.5+ LMM Forums > 07.5+ LMM Duramax Powertrain
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07.5+ LMM 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 Ect

 
       

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Old 06-28-2009, 09:16 AM   eBay Motors   #11 (permalink)
delong_1
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i got about 16-17 mixed city-hwy i would have gotten better but it was only stock a few days and i couldnt keep my foot out of it.

sorry i just saw that this is in the lmm section, i doubt you care what an LB7 gets for mileage.
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Old 06-28-2009, 09:29 AM   eBay Motors   #12 (permalink)
Redeagle313
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Stock '07 Classic with LBZ, 22k on the odometer. 14 mpg around town, 21 mpg highway at 60 to 65 mph, avg 14 mpg towing a 7k Airstream @ 62 mph.
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Old 06-28-2009, 06:59 PM   eBay Motors   #13 (permalink)
Michael1
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These mileages sound quite good. I guess I was expecting the worst after reading the DPF Delete posts. Yeah, I just wanted to keep it stock, keep the warrantee, save the hassle, and keep my lungs clean. Thanks, guys!

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Old 06-28-2009, 07:05 PM   eBay Motors   #14 (permalink)
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Quote:
Originally Posted by delong_1 View Post
i got about 16-17 mixed city-hwy i would have gotten better but it was only stock a few days and i couldnt keep my foot out of it.

sorry i just saw that this is in the lmm section, i doubt you care what an LB7 gets for mileage.
I don't think this was in that section when it was first posted. Maybe I didn't look good enough...
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Old 06-28-2009, 07:10 PM   eBay Motors   #15 (permalink)
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I think that if you are in the 15-19 range "HAND CALCULATED", Then you should be good go to go............
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Old 06-30-2009, 06:25 AM   eBay Motors   #16 (permalink)
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To and from work I fill up every 2 weeks and there are alot of lights and I may top out at 45 mph during the trip. I have been now averaging about 15 1/2 mpg. It's an 08 LMM that is now a year old with about 6,900 miles on it.
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Old 07-01-2009, 05:19 AM   eBay Motors   #17 (permalink)
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2006 LBZ

Overall miles..........113k.
City avg mpg's........15-17
Highway mpg's........18-22
Too bad I am bringing the truck in this morning to get the tranny seen about,I think I limped the damn thing day before yesterday....Wish me luck guys,and if it is BURNT.........Suncoast V here I come!!!!
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Old 07-01-2009, 11:08 AM   eBay Motors   #18 (permalink)
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city=13 Freeway=15 pulling my 5ther=8 @60mph Hand calculated. Lie o meter always reads 3 more.
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Old 07-01-2009, 11:17 AM   eBay Motors   #19 (permalink)
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2007.5 LMM, 27K on the odo., 67 miles both ways freeway everyday, 21-22 hwy, 17 in town. bone stock. i reset on the weekends to get a real average for in town too.
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Old 07-01-2009, 11:25 AM   eBay Motors   #20 (permalink)
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Quote:
Originally Posted by EL TATE View Post
2007.5 LMM, 27K on the odo., 67 miles both ways freeway everyday, 21-22 hwy, 17 in town. bone stock. i reset on the weekends to get a real average for in town too.
I would bet if you hand calculate it and you'll be disappointed.
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