DEF tank delete and DPF delete. MPG info. - Chevy and GMC Duramax Diesel Forum
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Old 09-24-2011, 07:12 PM   eBay Motors  #1 (permalink)
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DEF tank delete and DPF delete. MPG info.

Now that I've had he DEF deleted and the DPF thought I would post my MPG. I'm getting about 18Mpg average, around 600 miles per tank. They say it's a 36 gallon tank but every time I Fill it it the most it takes is 33 gallons, and that's with the fuel light being on for around 30 miles. Has anyone else done the same mods and have what there getting for mpg???
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H&S Mini Max tuner
Banks Cold Air Intake
4" Turbo Back 6" Dual Tips
15% Tint Front 12% Rear
Cognito UCA's,Fox Monotube Shocks
Steering Braces
55W 8K HID's
Denali 18" Rims
295/70/18 Nitto Terra Grapplers
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Old 09-25-2011, 07:44 AM   eBay Motors  #2 (permalink)
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Subscribing. I would like to know also.
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Old 09-25-2011, 07:47 AM   eBay Motors  #3 (permalink)
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Yea, i am curious too. I just dont have the balls to void my warranty.
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Old 09-25-2011, 07:52 AM   eBay Motors  #4 (permalink)
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Yeah Id like to know as well... I dont think Im going to void my warranty till it has at least 60k miles on it which isnt too far off. Ive got just over 41k miles right now. The fuel tank is 36 gallons I have put in 35+ gallons a few different times!!! lol Im gettin 16-17mpg average right now stock. So hopefully some are seeing better than 18mpg tuned and deleted
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Truck: 2011 Chevy Silverado 2500HD Duramax CC/SB | N-fab 6 step bars with 2" sectioned out of the front| Bushwacker Cut-Out Flares | Sulastic Shackles | Cognito 4-6" lift | Fuel Throttle 20x10 -12mm offset | 325/60R20 Goodyear Wrangler Duratracs | H&S Mini Maxx | DPF Delete | Urea Delete | EGR Delete| PPE Manifolds and Up-Pipes | Diamondeye 3" Downpipe | 5" Flo~Pro Exhaust w/Muffler

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Old 09-25-2011, 08:00 AM   eBay Motors  #5 (permalink)
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Quote:
Originally Posted by 2011LousDuramax View Post
Now that I've had he DEF deleted and the DPF thought I would post my MPG. I'm getting about 18Mpg average, around 600 miles per tank. They say it's a 36 gallon tank but every time I Fill it it the most it takes is 33 gallons, and that's with the fuel light being on for around 30 miles. Has anyone else done the same mods and have what there getting for mpg???
How many miles on the truck?? What kind of driving are you doing while getting the 18 mpg? Highway/City? With or without the Mini Max?
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Old 09-25-2011, 08:04 AM   eBay Motors  #6 (permalink)
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16-17 stock, thats great.. my 08 lmm only gets 14.5 average. Is that mostly city driving?
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Old 09-25-2011, 08:19 AM   eBay Motors  #7 (permalink)
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16-17 stock, thats great.. my 08 lmm only gets 14.5 average. Is that mostly city driving?
Its pretty much 40-60 mix city-highway but with quite a bit of idling. If im doing mainly highway say 75-80% of the time with minimal idling I get around 18. Strictly highway cruising I have seen all the way up to 21 but that only happened twice.
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Truck: 2011 Chevy Silverado 2500HD Duramax CC/SB | N-fab 6 step bars with 2" sectioned out of the front| Bushwacker Cut-Out Flares | Sulastic Shackles | Cognito 4-6" lift | Fuel Throttle 20x10 -12mm offset | 325/60R20 Goodyear Wrangler Duratracs | H&S Mini Maxx | DPF Delete | Urea Delete | EGR Delete| PPE Manifolds and Up-Pipes | Diamondeye 3" Downpipe | 5" Flo~Pro Exhaust w/Muffler

Coming soon: S&B Intake and FASS Lift Pump
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Old 09-25-2011, 10:00 AM   eBay Motors  #8 (permalink)
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Originally Posted by Denali4me View Post
How many miles on the truck?? What kind of driving are you doing while getting the 18 mpg? Highway/City? With or without the Mini Max?
I have about 14,000 on the truck, I did the delete when It had 2,000 miles. I have a 30 mile commute to work 60% is highway, I have the Mini Max set on mild but i have a lead foot...It's kinda hard no to cause it sounds so sick at WOT!!!


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2011 GMC 2500HD LML
H&S Mini Max tuner
Banks Cold Air Intake
4" Turbo Back 6" Dual Tips
15% Tint Front 12% Rear
Cognito UCA's,Fox Monotube Shocks
Steering Braces
55W 8K HID's
Denali 18" Rims
295/70/18 Nitto Terra Grapplers
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Old 09-26-2011, 06:53 AM   eBay Motors  #9 (permalink)
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I dont know what i'm doing wrong then trevor! I get about 16 in the denali with 50k and thats alot of highway driving. And then the worktruck is getting about 14... It's kinda starting to piss me off!
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Old 09-27-2011, 11:00 AM   eBay Motors  #10 (permalink)
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Quote:
Originally Posted by trevorb_06 View Post
Yeah Id like to know as well... I dont think Im going to void my warranty till it has at least 60k miles on it which isnt too far off. Ive got just over 41k miles right now. The fuel tank is 36 gallons I have put in 35+ gallons a few different times!!! lol Im gettin 16-17mpg average right now stock. So hopefully some are seeing better than 18mpg tuned and deleted
how long did you run it with the fuel light on to get 35 gallons in it????
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2011 GMC 2500HD LML
H&S Mini Max tuner
Banks Cold Air Intake
4" Turbo Back 6" Dual Tips
15% Tint Front 12% Rear
Cognito UCA's,Fox Monotube Shocks
Steering Braces
55W 8K HID's
Denali 18" Rims
295/70/18 Nitto Terra Grapplers
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