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Old 02-12-2012, 10:13 PM   #1 (permalink)
EcoModding Lurker
Join Date: Feb 2012
Location: CA
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New guy burning massive amounts of Diesel!

Hey all, cool forum, hoping to find lots of little mods I can do.

Started today by putting airtabs on my truck and trailer, so far saw a slight improvement but had bad winds on my 300 miles today so will need more testing.

I pull a 40ft enclosed trailer non stop with a Chevy Duramax dually, getting about 11-13 mpg depending on conditions, trying to get up to 15+ as some weeks I am doing 5,000 plus miles!!

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Old 02-13-2012, 06:51 PM   #2 (permalink)
MPG Militia HMV-25E80+A
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Location: Vermont, USA
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FrankenJetta D - '90 Volkswagen Jetta GL
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Welcome to the forum, glenns. Good advice abounds, and you might look into the aerodynamics section for some info on those air tabs.

It is always very amusing how our imagination is put to the test when overcoming reality. Redyaris
Boat tail project
How to gently bump start during EOC
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Old 02-13-2012, 09:24 PM   #3 (permalink)
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05 DMax - '05 Chevrolet 2500HD
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Welcome !
Look at your belly and the trailer axles as serious air disturbers.
Can you add a kamm to the trailer like a trailer-tail?

Oh, and welcome, where are my manners.

I can't understand why my MPG's are so low..........
21,000lb, 41' Toy Haulers are rough on FE!
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Old 02-13-2012, 10:51 PM   #4 (permalink)
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Join Date: May 2011
Location: Indiana
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White Whale - '07 Dodge Ram 2500 ST Quad Cab 2wd, short bed
Team Cummins
90 day: 37.68 mpg (US)
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Welcome! Dig around on some othe threads around here and you'll find quite a bit of info. A lot of the info is geared towards smaller gasoline cars, but many of the same principles apply to a big diesel pickup. What year is your truck? 2wd or 4wd? Auto or manual tranny?

Also, since you have that big enclosed trailer, you might want to look into one of these tails that were designed for big rigs, but could probably be adapted to your trailer:
Diesel Dave

My version of energy storage is called "momentum".
My version of regenerative braking is called "bump starting".

1 Year Avg (Every Mile Traveled) = 47.8 mpg

BEST TANK: 2,009.6 mi on 35 gal (57.42 mpg): http://ecomodder.com/forum/showthrea...5-a-26259.html

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Old 02-17-2012, 11:02 AM   #5 (permalink)
Join Date: Oct 2009
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2004 CTD - '04 DODGE RAM 2500 SLT
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That's an impressive number of miles weekly. Get us some pics and truck/trailer spec when it's convenient.

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