I had a '04.5 duramax and my average MPG was 22. with dodges history of transmission issues and fords issues with the diesel transmissions i would stick to anything with an allision.

Here's an interesting article on the new Chevy/Gmc and comparison with the new Ford and a brief blurb about the Dodge.

http://www.autoblog.com/2010/06/14/2011-chevy-silverado-and-gmc-sierra-heavy-duty-first-drive/?icid=main|main|dl4|link6|http%3A%2F%2Fwww.autoblo g.com%2F2010%2F06%2F14%2F2011-chevy-silverado-and-gmc-sierra-heavy-duty-first-drive%2F

I don't believe that because it's a Ford website. Unfortunately all the emissions crap is killing mpgs. A dpf delete on the 6.7's gain 3-5 mpg from what I have read.

But after seeing this video I don't ever believe anything a company says when it is about their product versus another.

https://www.youtube.com/watch?v=-zZJ4...eature=related

I have an 08 with 40k miles on her. I took the DPF, Cat and EGR off at 10k miles. I get 19 - 20 mixed city/hwy, 16 - 17 on winter fuel, 10 - 13 towing depending on head wind (cruise set at 75mph+).

The 2010 is a little different cat, the Smarty and H&S boys are working on tuners for the 10.

I've had three Dodge diesel trucks, then bought an '08 Duramax. MPG sucked so badly in that truck (14 mpg avg) that I sold it and found a low mileage '06 Dodge which I still have. It averages 22 mpg (2wd dually crewcab). I really like the new Dodge trucks, but I know someone with a 4x4 dually crew and his only averages 14 mpg.

If you want gas mileage, stick with the 06 and older, pre-DPF years, of any brand.

Mark for what model year? I don't think you are talking about the 2011 models?

2011 Ford Super Duty w/6.7 Diesel = 390 horsepower and 735 pound-feet of torque. 6,520 pounds of payload / 24,400 pounds towing.

Yes, I was lead design on the 2100 HD, we had been working on it for some time, seems like an eternity ago. On to other projects now...

Mark

somehow I always feel some peoples MPG claims regarding diesel trucks to be full of BS.

I've recorded every drop of fuel i've run through my 2wd '04.5 5.9L quad cab dually, auto trans. i have a straight through muffler and I own a dog, so I don't have a cat. I have an Edge Juice with Attitude and leave it set on the milage setting 99% of the time during unloaded driving and set it in tow mode when towing.

Off the top of my head, the BEST full tank with mostly highway driving with no load was in the 16-17 mpg range. This was limiting speeds to under 70. I think my best mpg range is in the 60-65 area, a touch under 2000 rpm.

Around town with no load I get about 12 mpg. It's a lot of stop and go with lights. The surface street speed limit is 45 and thats at the cusp of lock up and OD.

I know the earlier trucks did a good bit better. The dual rear wheels probably knock off 1 mpg ? The auto maybe 1 mpg ? Either way, around town it does better than the '02 1500 Quad Cab short bed with a 5.9L gas engine I had. The gas truck did better on the highway by a little bit.



I forgot to add : if you are relying on the truck to tell you what MPG you are getting, it's probably wrong. And it can be by alot. I do the math myself.

So, you are saying it's the best because you designed it, or because it's last in every measure of performance? LOL.

My buddies with diesels always talk big talk about their mpg's, until you go on a trip with them and it's no better than a gas truck and they make up every excuse in the book to justify the 10K they spent extra on it. I laugh...and laugh. Must've been some crappy winter fuel. Too many additives. Had it in OD, didn't have it in OD. Big headwind. Too hot, too cold. You name it. They didn't have much to talk about when diesel was $5/gallon here a while back. Of course, I do live in MN, and I imagine the summer/winter blends do vary through the season as tanks get refilled at the stations, etc.

I get 14mpg all the time in my gas Silverado 1500 with a lift and tires....about the same as I've ever calculated with my buddies diesels. Their claims of 20+mpg suddenly go out the window when someone knows how to run a calculator. :_paranoid

I will say one thing. If I lived in the mountains it'd be a no brainer. I can barely keep up to my buddy's Dodge 3500 pulling a gooseneck with two rock crawlers, two quads, a generator, two dirt bikes, a full toolbox and auxiliary fuel tank through the mountains with the Heavy Chevy to the boards...unloaded. HAHA!

I've had a 04' GMC Duramax and loved that truck, BUT if you are planning on buying a new truck consider a few things.

1 -How much of the time will it be used as a tow vehicle/daily driver?
= if your not going to be towing with it 60-75% GAS is better.

2 -How many miles do you drive one way to work or will it be used as a contractor (work) truck
=as a daily driver you need to put more miles on/ longer run times because DIESELS LIKE HEAT!

3 -How long do you plan to keep it years/miles?
= consider the amount you pay extra for the diesel engine/trans combo vs. a gas 3/4 / 1 ton? at least $10,000, you can buy alot of gas for that.

4 -Are you buying it just because you and your friends think diesels are cool?
= Yep they are awesome if you plan on using it as a truck, and pull and haul alot, but if you want to save some money up front and over the long haul, I'd buy a gas engine all day long.

Just my $.02

Travis