LBZ Fuel Mileage

[FBJR]

Just passed 200 miles and getting about 17 mpg mixed driving.

Got 22 coming home from Reno on Sunday

FB

[BigHerb]

I just got my new 2500HD CC LT3 4x4 day before yesterday (09/26/06). I had to drive to a new contract site, about 300 or so miles, and got 16.49 MPG hand calculated. That is a great improvement over my 2003 Silverado SS that got 12 - 13 with the 6.0 HO. This new truck is great!

[KrazyNate]

Mine is an 02 2500HD. I just filled up, 22 gal on the nub and only 289 miles... I figure about 13.2 MPG... I fear the dreaded injector issue....

[EdHale]

I just got back home after a 500 mile trip, not towing and with the a/c off. I manged to keep it at 65mph the entire trip and 99% of this trip was on limited access highways with the cruise on. I have a '06 CC LBZ and it turned over 6,000 miles this trip. Overall economy 22 mpg. I have made this trip before with the a/c on and it drops to 20 mpg. I'm happy. Ed

[RETLAW]

My fuel mileage so far, 900 miles on truck, about 15.5 around town with some highway. All 2 lane highway yesterday, 55-60 MPH, with a few small towns, 320 miles, average was 20.6 MPG. This is with calculator, dash showed only 18.5. I did both fillups, one at start and one at end, and made sure it was really full at end. I was happy. This is just a little better than my 02 was getting after 75k.


2007 Silverado Classic D/A C/C LT short box, 2wd

2002 Silverado D/A ext cab LT short box, 2wd. MUST SELL!! (see classified)

RETLAW

[Prestonia24]

I have an 06 LBZ CC SB, and have been seeing anywhere from 14mpg (all streets mostly), to about 18 on the highway.

I've not been on any long trips (+50miles ea way) to test out to see if I can get 20mpg on the highway (at 67mph).

I've been making a table of a bunch of information so that when I hit the magic break-in number I can see the fuel economy change.

Thus far, almost 3400 miles in, i'm still seeing about 15.

[Londell]

I have 2006 LBZ with 13K miles and get consistently 17mpg in city and 23-25mpg on freeway. My optimal mpg on freeway is at 55mph and get 25mph, but I cant stand driving that slow and at 60mph get 23mph and at 65mph get 21mpg and I dont go over that because I'd rather take my time and get better fuel economy. When towing 14,000 lb Fiver I get 12-13mpg on the flats and 10mpg on grades all at 55mph to 60mph. Not bad.... but I noticed when I took my truck into the dealer for the glow plug recall they also reflashed the emissions control and I had a significant drop in mpg...city was 13-15mpg and highway was 17-19mpg....it took about 5k miles for it to break back in... so I suggest when you take your truck back for dealer recalls make sure they do not reflash your emissions computer if at all possible. Just my opinion.

[upsguy]

I've had my '06 LBZ for almost 2 months and I used to get 19-20 highway doing 70 mph and 22-23 doing 55 mph and then ULSD hit and I'm getting 2.5-3 mpg less.

[Barkbuster]

Topped off today after a short trip and a day to work and back not even a quarter tank but the bit of cruising I did @65mph helped 18.9 mpg.

[ohsnow]

Had mine since Auguast 16 2006, city as low as 12.6 hwy 21.2 hand calculated.

Total life average is 16.279 hand calculated from new.

Very happy tus far. Present mileage is 3500 and MPG climbs every tank.

Best runs are on hwy 401 to Toronto at 75 mph.

[Barkbuster]

Last tank got 18mpg just 3 weeks of back and forth to work. 2000mi. on it now.
No steady highway driving yet. Was hoping for 20mpg going to work so a little disappointed for now. At the rate I`m going it may be a year before its fully broke in, but it is improving.

[up@12]

I have 35,000km on my 06 duramax and am getting 17-18 mpg but was getting alot better when I first got the truck. I think I need to beat on it for a bit. LOLOL

[Barkbuster]

Took a 460 mile trip with my dirtbike in the back @65-70mph 18.8mpg. 3500 on the truck now. Usld may be hurting it a bit. really bummed it didn`t get over 20 on this trip

[up@12]

I have 35,000km on my 06 duramax and am getting 17-18 mpg but was getting alot better when I first got the truck. I think I need to beat on it for a bit. LOLOL

Sorry I am getting 14.6 MPG I typed the wrong thing. But in saying that last night I took out my AFE filter and put in my stock filter and with the AFE filter I was getting about 122km to a quarter tank now with the stock filter I have 122 km and it has just moved off the full mark. Anyone else ever have this?

[Barkbuster]

Best week yet! 19.3 no highway just to work and back

[Zacc]

Does anybody know what the gas engines get for mpg? With diesel costing over 50 cents more per gallon it's tempting to look to the underpowered option.

DZ

[gophergunner]

2006 sierra quad cab, 4x4, best i ever got was 25 mpg highway doing about 110 km/hr