I got 19.5 mpg on a recent trip with my 09 Siverado. 6000 miles on it, 68 mph empty. Around 15 local driving.
I got 19.5 mpg on a recent trip with my 09 Siverado. 6000 miles on it, 68 mph empty. Around 15 local driving.
[SIGPIC][/SIGPIC]
2009 Silverado 2500 HD Crew Cab D/A LTZ
Western 8' Poly Pro Plow with wings, Luverne SS Running Boards, Weatherguard Alum. Tool Boxes, WeatherTech Floor Liners, Stampede Wind Deflectors, Line X Spray In Bed Liner
1985 CUCV Blazer with 6.2 Dsl
I will get 17-18 hiway at 75 with no trailer in tow, if I am pulling ANY trailer from a small utility to my 29 foot rv my mileage will drop to 8-11. I am not very inpressed with my towing mileage. Power is great.
I am running 285/75/16 and have had GM reproram the system, also a K&N air filter, and a supper chip programer. I can set the programer on any setting and it will not effect my mileage.
I have 25k miles on the truck.
is this nomal mileage for this truck?
2007.5 LMM
Hi,
A couple of weeks ago, I did Chicago to near Grand Junction, CO, with my '09 LMM.
Actual calculated fuel economy on the last two legs of this trip (topper on truck, cruise control on 65, short stop-off tooling around in Denver), was right at 20 mpg. I know from prior trips that running without the topper costs me about 1.5 mpg on this same route.
FWIW.
Rich Phillips
Member #27
2019 K-2500 Crew Cab Z71
Cedar Creek Silverback 33RL Fifth Wheel
In The Past: '82 6.2 Jimmy Blazer, '93 6.5 GMC K-2500, '01 DMAX K-2500, '09 DMAX K-2500
I been using this Excel file for 5 years now with some modifications and it works really good and it's accurate..........been averaging 19.6 mpg on my 2007 Silverado LT 1500 over a 3 years period.
http://www.uklegacy.com/forums/index...e=post&id=2651
I do not believe your dealer can adjust a DMax truck to your tire size - the ABS system yes they could, but for speedo - no.
If you still have the DPF in place, your programmer is causing the truck to regenerate more often and will result in lower mileage.
Your K/N filter is a big no-no for diesels. Yes it may allow more air into system, but more dirt as well. There have been independent tests done that show the stock air filter does the best at stopping dirt.
My truck is an 08 CC/long box and its hovers between 18 - 19 mpg and towing my 28 ft fw and atv trailer in tandem 10 - 12 mpg. I hit the magic 20 mpg mark once in the 38K I have owned the truck.
08 Blue Granite Silverado LTZ, DMax/Ally, CC/LB/4x4, Cab lights, Camper mirrors, Brake controller, Sunroof, Park assist, and skinny tires
06 Jetta TDI
00 Jayco 263RK (2nd home)
upgraded to an "09" Ranger 619VS/full windsheilds, w/an ETEC 225HO, T8 kicker, Minnkota 101 Terrova, and Lowrance electronics.
Real Trucks have LONG BEDS!
I recently completed a round trip from Atlanta, GA to Loyal, WI to pickup my LB7 race engine from Kennedy Diesel. We burned 105.4 gallons of diesel over 2,137.2 miles for a trip average of 20.27 MPG. The highest leg was 21.0 MPG and the worst segment was 18.8 MPG. All cruise speeds were 73 to 78 with some bursts in the 80's. The 18.8 segment was bumper to bumper rush hour traffic in ATL.
All mileage was hand calculated.
This was with the KD Tow Tune ECM and DPF delete with the KD four-inch exhaust. Everything else is stock on my 2008 LMM. Very happy with the KD tuning on the LMM.
I highly recommend the KD tune for those wanting to bump up their mileage on their LMM.
2002 LB7 D/A 2WD. Suncoast Stage V. KD EFILive Tuned, KD N2O, KD 40 Over Injectors, MDP Custom Fuel System, KD MEGA Filter, BD Turbo
2005 LLY D/A 2WD. KD Headlight Booster, KD 4/5 Exhaust, Suncoast Stage V, KD EFILive Tuned.
LB7:12.8@108 #2 Only 11.92@115.62 #2W/N20
LLY: 471HP & 990 TQ 13.58@100.57
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