|04-06-2011, 08:44 AM||eBay Motors #1 (permalink)|
Join Date: Apr 2011
Best Duramax year for mileage?
Good morning - I'm looking into purchasing a Duramax as my next truck. Was curious if anybody had any insight as to which year/configuration typically kicks out the best fuel mileage - 2002? 2006? LLY/LBZ? 5 speed/6 speed? etc.. I realize that the rear end ratio is also key (3.73 being better than a 4.10). From what I've heard and read, it sound like with the right combo, you can get in the mid 20's. I'd definitely prefer that over low teens! Any insight would certainly be helpful. Thanks!
|04-06-2011, 08:46 AM||eBay Motors #2 (permalink)|
Join Date: Dec 2008
Location: Western North Carolina
Well my LB7 gets better miledge than my friend's LLY. We basically have the same stuff.
|04-06-2011, 08:52 AM||eBay Motors #3 (permalink)|
Hey Ass Man!
Join Date: Feb 2009
Location: East Coast, Canada
Mid 20's, probably not going to get there.. low 20's are doable.
08 GMC 2500HD LMM SLT CC SB 4x4
EFI Live DSP 5 w/ EDGE CTS Insight
PPE IV l Precision Torque Convertor
4" MBRP l MBRP DP l AD II 165
EGR Blocked l AFE l Zone 6"
Cognito UCA's l Kryptonite Sleeves
20x12 Fuel Octanes l 35x12.50 M/T's
|04-06-2011, 09:52 AM||eBay Motors #5 (permalink)|
Join Date: Feb 2011
Location: Rome, GA
I don't think I could get mid 20's if I put the truck in neutral and pushed off a cliff. Best I ever got was 22 MPG running stock tires (265/70R17) at 70 mph on cruise and not towing. I can consistantly get 18-19 mpg on the highway when changing speeds and about 15 mpg for in town. If you put your foot in it often, then don't expect that kind of mileage.
2008 GMC 2500HD LMM SLT CC SB 4x4 Z71
Buckstop front bumper, WARN M12000 winch, PIAA 520 ATP driving / PIAA 510 fog, Westin Platinum Series nerf bars, Pace Edwards Bedlocker tonneau cover, Cognito UCA leveling kit and HD Idler Pivot Assembly, Cognito Pitman and Idler steering braces, Bilstein 5100's, LT285/70R17 BFG AT KO tires, 17 x 9 XD Series Crank Wheels, 15% Tint Driver/Passenger windows, GM Tow Mirrors, DDM Tuning HID lights 6000K 35W
|04-06-2011, 09:58 AM||eBay Motors #6 (permalink)|
Evergreen Oil Burners
Join Date: Feb 2009
Location: Lake Forest Park, Washington
stock 01-04 will be most fuel efficient but with a few mods youll be able to get just about any year to hit the same mileage, best real world mileage youre probably going to see is low 20s (personal best was 21.5 on 37s 70mph cruise control perfect driving conditions)
03 Chev CCLB
500HP on STOCK trans/fuel/turbo
built trans and lift pump coming soon!
special thanks to
ADP, ATP, HDP, UDP, BDDP, MJS
|04-06-2011, 10:00 AM||eBay Motors #7 (permalink)|
Join Date: Jul 2010
Location: Tampa, FL
Im still toying with my tunes and cruising speed but ive done 21mpg with my LB7. Gotta be an old man though...
2001 mystic green Camaro Z28 6 speed, 408 forged stroker motor 505 rwhp 490tq
|04-06-2011, 10:08 AM||eBay Motors #8 (permalink)|
saw what you did there
Join Date: Jan 2009
if you're concerned about MPG, a 7,000 pound truck might not be your best option.
Kevin: SOLD!!!!!!!!! MY07.5 3500HD SRW. LMM. LT. CCLB. 4x4.
8" Cognito, 20" SOTA'S, PPE Stage 5, SDP S475 Twin Turbo Over Stock, EFI Live by DuramaxTuner, ADII.
MY11 Volkswagen Golf TDI 6MT.
6K Lows, 3K Fogs, Tint.
CLICK BEFORE YOU POST!
|04-06-2011, 10:10 AM||eBay Motors #9 (permalink)|
Join Date: Mar 2010
Location: morgantown wv
personally the lb7 gets the best mileage of all of them Ive seen my lbz gets 13-18 and my buddys lmm gets 13 period but its bone stock
07 ecsb lbz lt3 edge 5'' to 7"black mitres ,stage 4 big dipper with 1058 sc, 4094 avnt, 45 over nozzles and atp ecm and dsp5 ,tb keys 325 cooper disc stts on 18 inch 197 EAGLES air dog II 165 ppe rail fitting and fprv shims and bushwhacker pockets http://dmaxstore.com/http://www.getsomeperformance.com/