Last post on Mar 22, 2004 at 7:32 AM
You are in the Pickups - Archived Discussions
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Chevrolet Silverado 2500HD, GMC Sierra 2500HD, Engine, Diesel, Truck
Feb 27, 2004 (3:10 am)
I have seen 19-22 on highway alone driving within the legal limits.
Feb 27, 2004 (5:54 am)
Depends on how you drive. I will never buy another d-max based on the poor milage. I am on my second one now. I need to drive it from MN to CO on a fairly regular basis. The speed limits are pretty high the whole way 70-75. If you cruise at 75-80 in the d-max, you can expect 10 mpg at best, it is really quite a sad thing. I could have saved $4500 and bought the 8100 to get that kind of milage. 2wd six speeds do well on fuel, not much else. My trip computer shows about 13 mpg ave with 15k miles on it.
If you want good milage from a big truck the Dodge Cummins is the only way to go. Mine gets 18-19 cruising at the aformentioned speeds. It has more power, is quieter at speed, and so far has had fewer problems than my d-max.
Feb 27, 2004 (9:58 am)
I just bought a 2500hd 4x4 Silverado with the duramax/allison combo and am averaging over 17mpg in combined city/hwy driving. I've only had it a month, but I'm loving it so far.
I also own a Toyota Tacoma 4x4 with the 3.4 engine and manual tranny and can honestly say the Duramax has equaled it in fuel economy driving the exact same routes. An impressive feat for a much larger truck.
Furthermore, the handling of the Silverado is, in my opinion, better than the smaller truck. The handling of the Silverado is actually the most impressive thing about the truck. It handles like a car. I live in the country and drive alot of narrow, winding roads and this thing handles them effortlessly.
This is the first Chevy I've owned since I bought a (new)1970 Z28. Wish I still had that car.
If it continues to perform like it has so far I will be a very satisfied buyer.
#105 of 109 18.5 to 22 mpg
Mar 08, 2004 (2:39 am)
'04 Chevy 4x4, Extended Cab, Long Bed, LB7 with Allison trans.
I usually drive 5-8 mph over the posted speed - thats 70-73 around here. Steady driving is about 22 mpg, 15 miles to town and around town I get 18.5
Mar 08, 2004 (1:49 pm)
I'm impressed with that. I usually do 70-75 with my mid-size SUV and get about 16mpg on the highway and 12-13 in the city. I can't wait to buy a diesel!
#107 of 109 Day Running Lights
Mar 13, 2004 (12:56 pm)
I have a 2003 GMC Sierra 2500HD Duramax. The passenger side Day Running Light will not stay on. I have replaced the bulb and cleaned the contacts and it works for awhile, then goes out again. Anyone else have this problem?
#108 of 109 Sierra 2500 HD Duramax towing
Mar 20, 2004 (8:39 pm)
I am currently towing my 7k (lbs.) 5th wheel with my 2001 GMC 1500 5.3 Ext. Cab short bed truck. I'm considering going to the Sierra 2500 HD Duramax Crew Cab Short Bed as my next truck. Does anyone have any information on the 2004 Crew Cab short bed size? Is it long enough to accomodate the 5th Wheel and hitch? What is the towing capacity of this engine with the Allison automatic transmission?
Mar 22, 2004 (7:32 am)
To answer a few ?'s.
The bed length of the CC SB is 6.5 ft, the same as your current SB, so if yours works for towing so will the new one.
Overall vehicle length is about 239 inches.
When equipped with the HD towing package, the Duramax/ Allison combo has trailer towing capacity of 12K lbs for hitch mounts, 5th wheel ratings vary depending on application, but figure around 15K.