FunnyCamper wrote: I chatted with hubby. He said there is a overhead calculator for mileage. he hasn't read the book yet to learn how to get it started.
thanks everyone for the great responses. all stuff to think about and am relaying to hubby
I agree how one drives obviously affects mileage.
What gets me is I read on a 'review' that someone got like 25 miles per hr hauling a boat on a highway. Hmm...I have to question that review haha
That overhead readout has a nickname...........'Lie-O-Meter'
Hand calculate for a more accurate idea of what mileage you are getting.
Going back to stock size tires
The reprogram back to factory settings
Replacing that K&N Air filter
Replacing fuel filter
All things that should result in better/improved mileage.
Stranger wrote: When was the last fuel filter change?
If more than one oil change. Change it.
Cummins' are very sensitive to dirty fuel.
They'll run but, they won't be .
Also, check the screen on the fuel heater, if equipped.
That traps a lot of "Stuff" and is many times missed.
It should be, if you have one, on the frame rail, just about under the driver's seat.
I let him read all these responses.
he doesn't know if we have a fuel heater. he is checking in the morning.
worse thing is I opened up a giant dialogue for him to start explaining what all ll you guys wrote...my goodness he is chatting diesel this and engine that like crazy. I am lost
A diesel mech. friend of mine once told me "One thing that will make a preacher lie, is fuel mileage". I get about 12-13 towing and 18-20, more towards the 18, by itself. Your gonna have to pay to play, so just enjoy.
The '04 Cummins 5.9 with the lower 305 horspower rating gets fantastic non towing highway milage. (20 mpg is easy to obtain and on a good day I have seen 24 highway even with winter fuel) Can the '06 be set up exactly like the '04?
2011 F350 SRW short box 4x4 CC 6.7 PS King Ranch
B&W TurnoverBall and Companion
2003 Citation Supreme 34 RLTS
The K&N filter has oil soaked "gauze" as the filter media (the stuff that traps the particles in the air you don't want in your engine). They are cleanable and reusable. Once you clean them, they have to be re-oiled. Most people over oil them. That oil travels up stream of the filter and fouls sensors which measure incoming air volume.
Get rid of the K&N. Going back to stock tires size as you did will help too. Does the truck have a lift kit on it? That tends to lower mpg as well as the truck is higher up in the air.
Your truck does have a fuel heater, but it does not have any screen that requires cleaning. The fuel filter bowl is also the heater.
Straight highway, I can get 19-22 mpg pretty consistently with mine which is basically the same truck you have.
2010 Cougar 322QBS 5er
2007 Dodge 3500 SRW Megacab, 4x4, 5.9L Cummins, 3.73, 48RE auto HYPERTECH MAX ENERGY or DIABLO PREDATOR tuning MBRP 4" Turbo back Scangauge2 for Boost, Coolant temp, Rail press & Trans Temp
Torklift Stable Loads
Much depemds on city type milage or rural typ milage or suburban type mileage.
I'm all rural out here and very seldom drive in a city so I can expect the better mpgs than the other types.
"good judgment comes from experience, and a lot of that comes from bad judgment" ............ Will Rogers
'03 2500 QC Dodge/Cummins HO 3.73 6 speed manual Jacobs Westach
'97 Park Avanue 28' 5er 11200 gvwr two slides
The 06's got the poorest mileage to date for the 5.9's. This has to do in part with a third injection event that does nothing to propel the truck but rather it keeps the catalytic converter warm.
Scott, Grace and Wesly
2003 Dodge 3500 4x4, 6 speed Cummins (lightly bombed),
2004 Forest River 25RKS many, many mods.
H0NDA eu2000i
Did you have odometer / speedo calibrated (in case it got changed).
Is it dual RW?
Lift?
Off hand, if your truck has a bit of a lift, is DRW, the mileage is about right.
Summer or winter diesel?
Yes that can matter.
Is there a "performance" tune in it?
OP stated “And the Dodge man put it on his computer and 'reprogrammed' something and set it back to factory stats.” Comprehension difficulty doc?
Is the tires the factory spec size?
Again OP stated “also don't know about odometer being sized with tires, but we just went back to the factory recommended size’” Even a 6th grader should have caught this.
Did you have odometer / speedo calibrated (in case it got changed).
Same as #2 question, dodge man flashed it back to stock.
Is it dual RW?
Anybody who knows trucks of the past few years should know a 2500 would not have dual rear wheels. OP started her post with this “We have a Dodge 2500 4X4 Cummins Diesel Mega Cab.”
Lift?
Yes that would matter.
Off hand, if your truck has a bit of a lift, is DRW, the mileage is about right.
You have obliviously never owned a DRW 5.9 Cummins and know nothing about mileage with a it. Stick with what you know and posts like this make me wonder WTF you really do know.
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