2008 or newer 4x4 duramax owners
#11
Tin Foil Hat Wearin' Fool
iTrader: (36)
IMO go with an 06/07 LBZ duramax, best power, mileage and looking. How important is a warranty to you? The LMMs arent bad motors, they're actually the exact same motor as an LMM but with a shitty exhaust and different injectors, other than that they're basically the same motor.
Click on my garage for the mods I had on my old dmax. With it unloaded on 35s running 75 Id get a little over 17, pulling a jeep on a trailer running 75 Id get around 14.5, pulling my 5th wheel around 70 Id get mid 10s with that wind sail.
You cant go wrong with a Dmax, I shouldnt have gotten rid of mine, and Ill be getting another in the near future.
I only want an LMM next time around because I like the interior so much in the newer trucks and teh GMC is sexy
Click on my garage for the mods I had on my old dmax. With it unloaded on 35s running 75 Id get a little over 17, pulling a jeep on a trailer running 75 Id get around 14.5, pulling my 5th wheel around 70 Id get mid 10s with that wind sail.
You cant go wrong with a Dmax, I shouldnt have gotten rid of mine, and Ill be getting another in the near future.
I only want an LMM next time around because I like the interior so much in the newer trucks and teh GMC is sexy
#12
TECH Addict
iTrader: (25)
Join Date: Dec 2004
Location: southern california
Posts: 2,913
Likes: 0
Received 0 Likes
on
0 Posts
the reason for bad mileage on the nbs diesels is the particulate filters. which is going to be standard within a few more years. right now here in ca, any diesel made before 85 or 86 can no longer be registered here in ca. every year the laws get tougher . in a few years every truck will have to have a particulate filter which costs about 5k to install one on a non factory dpf truck.
think about it though , get a new pipe, delete the dpf . make tons of power with better mpg .
think about it though , get a new pipe, delete the dpf . make tons of power with better mpg .
#13
TECH Enthusiast
IMO go with an 06/07 LBZ duramax, best power, mileage and looking. How important is a warranty to you? The LMMs arent bad motors, they're actually the exact same motor as an LMM but with a shitty exhaust and different injectors, other than that they're basically the same motor.
Click on my garage for the mods I had on my old dmax. With it unloaded on 35s running 75 Id get a little over 17, pulling a jeep on a trailer running 75 Id get around 14.5, pulling my 5th wheel around 70 Id get mid 10s with that wind sail.
You cant go wrong with a Dmax, I shouldnt have gotten rid of mine, and Ill be getting another in the near future.
I only want an LMM next time around because I like the interior so much in the newer trucks and teh GMC is sexy
Click on my garage for the mods I had on my old dmax. With it unloaded on 35s running 75 Id get a little over 17, pulling a jeep on a trailer running 75 Id get around 14.5, pulling my 5th wheel around 70 Id get mid 10s with that wind sail.
You cant go wrong with a Dmax, I shouldnt have gotten rid of mine, and Ill be getting another in the near future.
I only want an LMM next time around because I like the interior so much in the newer trucks and teh GMC is sexy
#14
Tin Foil Hat Wearin' Fool
iTrader: (36)
LB7s get great mileage but cant really compare power wise mod for mod to an LBZ. I got close to 20 on 265s with a corsa exhaust and an EFI tune. No emissions crap on LBZs either, they have a cat but thats not that big of a deal to get rid of with an exhaust and in Texas its not a problem.
#15
TECH Senior Member
iTrader: (8)
Join Date: Sep 2004
Location: Houston, Texas
Posts: 6,411
Likes: 0
Received 0 Likes
on
0 Posts
ive had my 07 classic LBZ for almost 2weeks and i am enjoying it! getting 16-17mpg around town, going out of town this weekend so we'll see what i get on the highway,, this is a bone stock truck,, will be taking the cat off when i come back, heard people get 1-2mpg more with that?
#17
Need More N2O Mod
Join Date: Oct 2003
Location: Not in Koonerville MD anymore
Posts: 4,381
Likes: 0
Received 0 Likes
on
0 Posts
I have had my lmm CCLB dually for a month or so and i have put 3000 miles on it and I am averaging 12-13mpg around town and 15 on the highway. Towing is a different story. With a 9k lb trailer i am getting between 8-9 around town.
#19
Need More N2O Mod
Join Date: Oct 2003
Location: Not in Koonerville MD anymore
Posts: 4,381
Likes: 0
Received 0 Likes
on
0 Posts
nope. this is my company truck and its not worth loosing the warranty and I dont pay for the fuel that goes in it. But I had planned on buying a ccsb 2500 to use around the house and this truck made up my mind to find a low mile lbz.
#20
TECH Resident
iTrader: (5)
Join Date: Aug 2007
Location: AB, Canada
Posts: 774
Likes: 0
Received 0 Likes
on
0 Posts
I have an 08 LMM and get a consistent 16 - 17 mpg, mostly highway driving. I like the new body style a lot, especially the interior. Most pre-DPF DMAXes will get around 20 or better highway driving. Our 06 3500 single axle 4 X 4 at work gets over 500 miles to a tank of fuel.
A chip and DPF delete on the LMMs will get you 20 mpg for sure. Warranty will be void with a chip and exhaust modds, but who wants to remain stock??
A chip and DPF delete on the LMMs will get you 20 mpg for sure. Warranty will be void with a chip and exhaust modds, but who wants to remain stock??