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Old 09-22-2016, 01:39 AM   #21 (permalink)
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little jona - '91 Dodge D 250 first gen cummins LE
Team Streamliner
Last 3: 24.65 mpg (US)

Little Jona airo modded - '91 Dodge RAM 3/4 TON D 250 24 AUTO
Pickups
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90 day: 22.62 mpg (US)
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Install a fast response probe EGT.
Run the absolute lowest temp posable to maintain speed. EG. I run 500 f in the flats 600 mild hill 750-800 f for mountain passes @60-65 mph
Wrap the turbo and exhaust manifold to retain more heat energy inside the system instead of cooking everything under the hood. .the wrap has reduced my under hood temps drastically. Reduction of 100 across the bord EG before 1psi=600 f after 1psi =500f . Much faster spoolas well.

synthetic oil Everything P/S , M. trans , diff.2, T-case, grease. DO your Preventative Maintenence synthetic mobile 1 appears to have reduced my EGT by 50-75f EG 70 mph is normally 700-750f now 600f and virtually eliminated my cooldown time (from 1-5min to .25-1min to reach 300-350f ), idle temp reduction of 25-40f

If you want tall tires go with 255/85R 16(3310.00R16) my medium 235/85R16 (32925R16)
Short 215/85R16 (30850R16) as compaired to a 245/75 R16 (30.59.5R16) if your truck is running 18"s just add 2"to the OD

Use the Defrost as little as possible in winter. This setting uses the AC compressor to dehumidify the air before blowing it on cold glass.
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Question for the 3rd gen owners .
Can the extra "cleaning "injection event with the exhaust valve open be programmed out of existence?

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1st gen cummins 91.5 dodge d250 ,16cm turbo housing ehxsost manafulld wrap, Aero Tonto
best tank: distance 649gps mi 24.04 mpg 27.011usg
Best mpg : 29.3mpg 97mi 3.311usg 7/27/16



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Old 09-22-2016, 03:04 PM   #22 (permalink)
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Quote:
Originally Posted by slowmover View Post
As travel trailers are tall ( this is huge; today's are higher due to slide outs).
This explains a lot to me about my new Forester River product. I was wondering why the built it so high up, basically completely flat floor, deckover design, no wheel wells. I was thinking it was because of the new off-road style campers being popular with many people flipping the axles to gain ground clearance. Now I realize from what you said it's the only way to allow the entire wall to slide which mine does. That slide is the reason we bought this trailer, when opened up it makes a basically open floor 11'x17' aera, then 2 queens expand out of each end, Feels like a cabin inside.

So at least they skinned the bottom. I wonder if a slightly raised and skinned pickup wouldn't be a nice match and actually let a window of air go underneath. Axles, jacks, and tank drains are all still a mess under there though. I also don't think they could have used a higher profile AC unit up top either. I should just stop worring about mpg and accept it. Worst case it costs me $1000/yr in gas, probably more like $500 and any improvements in either truck or trailer won't save more then 1/2 that. In 11 years when I retire and plan on doing some more serious miles we can rethink our rig.
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Old 09-25-2016, 03:24 PM   #23 (permalink)
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Acura TSX - '06 Acura TSX
90 day: 31.25 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

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90 day: 27.09 mpg (US)

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Quote:
Originally Posted by gumby79 View Post
Question for the 3rd gen owners .
Can the extra "cleaning "injection event with the exhaust valve open be programmed out of existence?
I'm a 2nd gen owner, so don't take my word for it, but I believe the '03-'04 3rd gens don't have any extra emission stuff and don't have a "cleaning injection event". That would only be needed for a DPF, right?

The '04.5 and on trucks add a cat, in which case I'm not sure if extra fuel needs to be dumped in to clean it or not.
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Old 09-26-2016, 07:50 PM   #24 (permalink)
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2004 CTD - '04 DODGE RAM 2500 SLT
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The 305/555 motor is late '03 to early '04. Xmas of '04 and the 325/600 motor does have 3rd injection event.
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Old 09-26-2016, 11:38 PM   #25 (permalink)
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Woody - '96 Dodge Ram 2500 SLT
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90 day: 23.82 mpg (US)

Avion and Woody - '96 Dodge/Avion Ram 2500/5th wheel combo
90 day: 15.1 mpg (US)

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I installed 3.42 gears on my 3rd gen 4x4. It was good for nearly 15% in my case.
I loaf around at well below ideal RPM's whenever there is little to no load.
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currently parked - 1996 Dodge 2500 Cummins Turbodiesel
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Old 09-27-2016, 12:59 PM   #26 (permalink)
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Sub - '84 Chevy Diesel Suburban C10
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Riot - '03 Kia Rio POS
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90 day: 30.21 mpg (US)

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90 day: 26.43 mpg (US)

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Did you start with 3.73 or 4.10 gears?
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Old 09-27-2016, 11:37 PM   #27 (permalink)
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Woody - '96 Dodge Ram 2500 SLT
Team Cummins
90 day: 23.82 mpg (US)

Avion and Woody - '96 Dodge/Avion Ram 2500/5th wheel combo
90 day: 15.1 mpg (US)

TD eye eye eye - '03 Volkswagen Beetle GLS
90 day: 49.05 mpg (US)

Mule - '07 Dodge Ram 3500 ST
Thanks: 455
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3.73
Going from 4.10 would be dramatic.
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2007 Dodge Ram 3500 SRW 4x4 with 6MT
2003 TDI Beetle
2002 TDI Beetle

currently parked - 1996 Dodge 2500 Cummins Turbodiesel
Custom cab, auto, 3.55 gears
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Old 10-22-2016, 02:02 PM   #28 (permalink)
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Well, OP, didn't mean to scare you off by rambling all over the place on the topic of CTD mpg.
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2004.0 DODGE Ram QC/LB 2500 2WD/NV-5600 305/555 ISB. 7,940-lb. Stock. 200,000 miles/5000-hrs @ 40-mph average.
1990 35' Silver Streak TT 7,900-lb.
8-cpm solo & 11-cpm towing; 21-mpg average past 54k-miles
Sold: 1983 Silver Streak 3411
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Old 11-12-2016, 02:00 PM   #29 (permalink)
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Any updates on this Wyodaniel?
I have still been kicking around trucks here. I found a 2004 I kind of like but it's the 325hp version and an auto. I also found a 2003 but it's the non HO and also an automatic which apparently is the 47RE not the 48RE. The 2004 I looked at is showing over 20 mpg on the overhead lie-o-meter which is promising as the dealer has been using it to move locations across town. That truck looks stock but the exhaust might be a bit bigger and I didn't see a cat with I think the 2004.5 should have right? It has an exhaust temp gauge as well which makes me think it may have been or currently is chipped. At least it still has factory ride height and 265 series tires. So many I look at are jacked up on 35" tires or more.
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Old 11-15-2016, 09:40 AM   #30 (permalink)
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Both of my dodges 98 and 99 have 355 gears. 411 was offered. Changing ring and pinion gears will cost you in the neighbourhood of 4000 bucks. Many vehicles benifit from lowering the final drive ratio, but your truck won't unless you have the 411 gearing. Check the sticker under the hood. Taller tires are a cheaper route. Think about a tunner like edge or equivalent. I think the 03 to 07 came with a cat. Remove that for less restriction. Getting into the 20 plus mpg range isn't hard. Look up dieseldave on this forum and prepare to be impressed.

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