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| 2007.5 + (GMT 900) Non Powertrain--New Body Style-- Discussion 07.5 + Topics Not related to the Powertrain, interior, suspensions, body, wheels, tires, ect. |
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02-07-2008, 05:35 PM
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eBay Motors
#1 (permalink)
| | Junior Member
Join Date: Sep 2007 Location: Liberty,MO
Posts: 27
| Fuel MPG
Well as you guys know I got the 08 GMC CC and I notice the fuel Miles is still kinda low,will at improve.I drive about 40-50 miles oneway eachday,And I dont excell hard on takeoff. When I got it it only had 170 miles on it, now 1100 miles.  | 
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02-07-2008, 08:40 PM
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eBay Motors
#2 (permalink)
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Join Date: Jan 2008 Location: Engelhard, NC
Posts: 89
| What is kinda low? My 08 only has 1800 miles and I do alot of around town driving and it gets about 13-14 mpg, on the hwy about 19.5 mpg. I was told it will get better with more miles, but since I've already switched to Amsoil synthetic oil it may take mine even longer.
Randy
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08 Chevy 2500 HD Crewcab LMM/Allison, DPF delete, MBRP 4in turboback exh, PPE Race programmer, Autometer Ultralite EGT/Boost gauges, 285/65/18 BFG KO's on Gear Alloy Double Pump 18x9's, Westin chrome W2W step bars, Amsoil Dealer/User | |
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02-11-2008, 07:16 PM
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eBay Motors
#3 (permalink)
| | Junior Member
Join Date: Sep 2007 Location: Liberty,MO
Posts: 27
| oh Okay,13-14mpg is what I'm getting too. | |
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06-13-2008, 07:45 PM
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eBay Motors
#4 (permalink)
| | Member
Join Date: Dec 2007 Location: San Antonio, TX
Posts: 67
| From talking to my friends tht know a lot more about trucks than me...They say putting in a cold air intake and a new exhaust will improve MPG. Anybody tried these or have any knowledge in this department? | |
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06-13-2008, 08:21 PM
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eBay Motors
#5 (permalink)
| | Member
Join Date: Jun 2008 Location: holden beach, nc
Posts: 49
| cold air intake get rid of the dpf converter get an exhaust system from an 06 or 07 classic duramax it will all bolt right up and a programmer and you will get mid 20's easy
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08 LMM, PPE Xcellerator Hot ET2 Eliminator tune level 6, AFE stage 2 intake, 5" Magnaflow turbo back stright pipe, edge insight, ts performance power play mp8 module | |
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06-13-2008, 08:36 PM
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eBay Motors
#6 (permalink)
| | Member
Join Date: Dec 2007 Location: San Antonio, TX
Posts: 67
| I keep hearing dpf converter. What is that? I am not much of a mechanic and I am new to diesel...actually picking my first one up tomorrow from the dealer 07 chevy DMax Crewcab 4X4. I am pretty excited. | |
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06-13-2008, 08:37 PM
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eBay Motors
#7 (permalink)
| | Member
Join Date: Dec 2007 Location: San Antonio, TX
Posts: 67
| I am looking at a Banks exhaust system and cold air intake | |
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06-13-2008, 08:56 PM
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eBay Motors
#8 (permalink)
| | DuramaxForum Fanatic
Join Date: Apr 2008 Location: Lincoln, NE
Posts: 583
| Quote:
Originally Posted by kuntry_kid  I keep hearing dpf converter. What is that? I am not much of a mechanic and I am new to diesel...actually picking my first one up tomorrow from the dealer 07 chevy DMax Crewcab 4X4. I am pretty excited. | the dpf is the diesel particulate filter. It is in the exhaust system on the 07.5 and 08 trucks. The "classic" 07's dont have it. It catches all the soot (black smoke) so that it doesn't go into the atmosphere. It restricts the exhaust flow a ton, and most people that take it off get a couple extra mpg's. You also will have to get a tuner that will get rid of the codes and fools the computer to make it run right. | |
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06-13-2008, 08:58 PM
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eBay Motors
#9 (permalink)
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Join Date: Jun 2008 Location: holden beach, nc
Posts: 49
| ppe xcellorator hot et 2 eliminator will eliminate that code 
magnaflow or mbrp are what i would look at... and alot of people are running the same intake i got its just about the best bang for the buck
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08 LMM, PPE Xcellerator Hot ET2 Eliminator tune level 6, AFE stage 2 intake, 5" Magnaflow turbo back stright pipe, edge insight, ts performance power play mp8 module | |
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06-13-2008, 09:00 PM
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eBay Motors
#10 (permalink)
| | Duramax Forum Moderator
Join Date: Oct 2007 Location: Greenville, KY
Posts: 2,538
| The exhaust will help, but IMO the intake won't show any gains really.
__________________ KYLE 
05 Chevy LLY Crew Cab LT Dually 4x4, Crank it up Diesel Tie rod sleeves and centerlink, BD Diesel Remote Fuel Filter, EGR Blocked, TTS Dual Lift Pumps, FPRV Shim, Bullydog Outlook Monitor, AFE Stage 2 CAI, BD Diesel Manifold, Diamond Eye Turbo Direct Pipe, Diamond Eye 5" exhaust straight piped, Level Kit, Suncoast Stage IV w/ 1056 Torque Converter and Allison Deep pan EFI Live Tuned by IdahoRob!!!!
1981 VW Rabbit Pickup, 1.6L Diesel, 4 Speed Manual, 35 MPGs | |
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