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Chevy Silverado and GMC Sierra Duramax Fuel Mileage

490 messages,  Last post on Oct 09, 2009 at 6:05 AM

You are in the Diesels Forum. Your Host is kcram

What is this discussion about? Chevrolet Silverado 2500HD, Chevrolet Silverado 3500, GMC Sierra 2500HD, GMC Sierra 3500, Diesel, Fuel Efficiency (MPG), Truck


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#475 of 490
Re: 2007 duramax [bama13] by jbull454GMC
May 21, 2009 (6:22 pm)
Reply

Replying to: bama13 (May 21, 2009 4:48 pm)

Two questions for you. First, what was the temp outsided? Also, how much fuel was in the tank? Plus, there could have been water in the fuel too.
#476 of 490
Duramax fuel economy by jbull454GMC
May 31, 2009 (6:19 pm)
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Okay, back to this. I have an 08 GMC 2500HD with the dreaded DPF on it. I have recently put Mobile 1 in my truck for oil. I have also filled the tank with B5 biodiesel with Lucas fuel additive. I have noticed before with biodiesel I have better power and economy. I was not expecting the improvement I got with all of the above. I have gone from an average of 15.4 to 18.6 mpg. Its got me wondering how well it does when I switch to Amsoil which is my prime directive soon. I know one thing for sure. I'm not complaining with the price of fuel creeping up again. Any further thoughts on this by all means let us all know!
#477 of 490
0 to 60 by ozzynmax
Jun 02, 2009 (12:37 pm)
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how many feet dose it take to hit 60mph in 05 duramax 2500
#478 of 490
0-60 by ozzynmax
Jun 02, 2009 (12:49 pm)
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basically im trying to find out some info on mph per feet a chp said i was clocked at 57 mph within 300 to 400 feet id like some info that would help me fight this ticket
#479 of 490
0-60 by ozzynmax
Jun 02, 2009 (12:52 pm)
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is there any printed articles with proof of 0-60 times on a 2005 chevy duramax diesel 2500
#480 of 490
Get a lawyer by jerrydock
Jun 03, 2009 (3:33 am)
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Stop wasting your time trying to defend yourself and hire a good lawyer. They are worth the money...22 citations...no convictions here.
#481 of 490
On the 0-60 by jbull454GMC
Jun 03, 2009 (2:30 pm)
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Ozzy, I'd have to agree with Jerry. Get a good laywer, and in addition get a good fuzz buster. I'm waiting to see a Duramax powered police pursuit vehicle. The only time it would be funny is when there is a high speed chase with a sports car and they get run down by an oil burner.
#482 of 490
Re: low fuel rail pressure [jodie1614] by unionman1
Jun 13, 2009 (11:34 am)
Reply

Replying to: jodie1614 (Apr 26, 2009 4:43 pm)

More that likely you need to change your fuel filter. You might want to increase the blend of diesel vs. oil. I have an 2003 and ran home brew bio the whole time diesel fuel was above $3.00. The fuel filter was the only problem I had.
#483 of 490
Bad mileage on a 2005 by boomd
Jul 02, 2009 (8:50 pm)
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For some reason I am getting crap for mileage on this 05 silverado 2500.......1500 to the gallon. My last 2500 (an 04) I had, I was getting on the hiway anywhere from 22 to 28! I have bought both used, and I don't know if the 04 was chipped or not, but she was a runner. Any suggestions for the 05. Econ shows 15.5 at 1800 rpm's on the hiway.
 
Thanks folks,
 
Boomer
#484 of 490
Re: Bad mileage on a 2005 [boomd] by jbull454GMC
Jul 03, 2009 (1:10 pm)
Reply

Replying to: boomd (Jul 02, 2009 8:50 pm)

How many miles are on the truck? It may have an injector or turbo problem. Most likely if anything injectors.

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