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Pickups Diesels Chevy Silverado and GMC Sierra Duramax Fuel Mileage
506 messages, Last post on Nov 30, 2009 at 5:21 PM
You are in the Diesels Forum. Your Host is kcram
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Replying to: quadrunner501 (Sep 21, 2004 8:49 pm)
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I don't know how you tell, unless it's in the VIN or engine code or something, or maybe on the certificate of origin or titling papers... The old design is the LB7, new design is LLY, a mid-year 2004 introduction. The LLY has more horsepower and torque too, and apparently worse fuel mileage...but again, that could be a consequence of the driver. |
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Or, if you see something that looks like injectors on the outside of the valve cover, because the LB7 design has the injectors UNDERNEATH the valve covers, so you can see only the fuel rails.
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Replying to: quadrunner501 (Sep 25, 2004 10:56 am) |
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| blackMax, how about that fuel usage? | |
Fuel mileage dropped back to 16.0 with the cover on. BUT! I also found out that my tires only had 40psi in the front and 70 psi in the back. I have gauged them up to recommended 80psi and I am running another tank through. Will let you know.
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Replying to: blackmax (Oct 15, 2004 9:54 am) |
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Though I have now sworn off Duramax trucks, I have owned two of them, an '01 and an '03. I never got any better than about 15mpg average with either one. If you drive them no faster than 65 mph you can do better. I was making trips out west where 80+ mph highway cruising speed is the norm. There the D-max returned about 13-14mpg empty. I have three Cummins powered Dodges, two '03s and now an '05. the '03s will cruise at 80--90 and knock down 20 mpg empty. They are also quieter and don't have an impending injector failure in their future.
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3 weeks ago, I just bought a 2005 Crew Cab Short Bed Duramax Diesel.. First off, I love this truck. I traded in my 2001 1500 ext cab. Need the diesel to tow my horses and the crew cab to put the kids in, needed more room.. I have been on a few long trips, I just got back for a long trip 400 miles round trip some highway and some city driving the last part of the trip was all up hill going from sea level to 7,000 feet. I got around 20-21 miles per gallon average speed around 80 to 65 some traffic with stop and go. Very happy with the mileage I got. Much better than my 1500, which I got around 19 or less on highway, and forget about climbing up the hills it was a dog, and towing it did good sense I was maxing out the weight limit.. Glad GM made changed this model year... Love my new truck |
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I'm looking at buying my first diesel truck purchase to haul primarily, a 3 horse trailer, and for standard road commuting, not heavy hauling. We started out looking at F250's, but are also looking at the Chevy's since we don't pull really heavy loads, the incentives are attractive, and the cab has a better feel for me, since I'm pretty small; and the rig and bed are lower to the ground. I have some concern over the engine reliability,however. Any comments out there on the new Duramax engines? My biggest concerns, of course are engine and transmission reliability-- I don't want to get stuck out on the road with horses. Next is handling and safety; I'm not an experienced "big truck" driver. Turning radius is a factor, and the new tow package on the F 250's is an attractive feature. |
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