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Re: Cummings mileage
[Re: montessa]
#1530649
11/09/13 06:33 PM
11/09/13 06:33 PM
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Joined: Aug 2009
Posts: 2,042
Mooresburg, Tn
'72CudaRacer
top fuel
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top fuel
Joined: Aug 2009
Posts: 2,042
Mooresburg, Tn
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Mine is a '06 3500, Cummins, 4 X 4, auto. Not towing, I get almost 19 mpg as long as I keep the speed around 70, any higher and the mpg drops to approx 17. With a 26' enclosed tag trailer loaded to the max (10,500 lbs), I get about 12-13 mpg, unless I try to run over 70, then it drops to about 10.5-11. There is no lack of grunt here though.
Brian
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Re: Cummings mileage
[Re: montessa]
#1530650
11/09/13 06:35 PM
11/09/13 06:35 PM
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Joined: Sep 2012
Posts: 1,563
Janesville, WI
SpareParts
pro stock
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pro stock
Joined: Sep 2012
Posts: 1,563
Janesville, WI
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CUMMINS When they went to 24v the mpg dropped. My 12v doesn't hesitate to see 24mpg highway with a non lock up converter. My brother's 97 12v will get 28. Both trucks have fuel and turbo mods.  Edit we both get around 20 towing kinda heavy and not pussy footing them, they belch smoke from a stop, spool up and GO
Last edited by SpareParts; 11/09/13 06:37 PM.
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Re: Cummings mileage
[Re: montessa]
#1530653
11/09/13 07:08 PM
11/09/13 07:08 PM
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Joined: Jan 2007
Posts: 1,169
MI
68shifter
super stock
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super stock
Joined: Jan 2007
Posts: 1,169
MI
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No. I have a 2013. 6.7L with 3.42's. Empty I get 22 area at 70-75, if I drive 55 I'll get 25. When pulling my 28ft enclosed with cabinets/insulation/car etc.., around 12k I averaged 13.5 from Mi to Pittsburgh. It'll do a bit better on flatter tows. The exhaust brake is phenomenal on the new trucks. Also, you use about 1 gal of DEF per 1000 miles at about $6 a gallon. Just an average though. Good luck. Also good first hand knowledge here too on 2013+ http://www.cumminsforum.com/forum/2013-general-discussion/
Last edited by 68shifter; 11/09/13 08:11 PM.
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Re: Cummings mileage
[Re: 1KoolBee]
#1530655
11/09/13 07:47 PM
11/09/13 07:47 PM
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Joined: Feb 2006
Posts: 698
Alberta Canada
Edge
mopar
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mopar
Joined: Feb 2006
Posts: 698
Alberta Canada
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2009 6.7 litre with 6 speed auto 12 towing car trailer , will do 22 on the highway at 65. Had a 5.9 12 valve with a manual was a little better but not all that much. I have had 7 diesel pickups going all the way back to the first cummins in a pickup ( that was a gutless wonder) and none of them ever managed to get the mileage I heard claimed by others. On the flip side I did own a hemi ram and that was a pretty thirsty vehicle especially towing made the diesel seem like an economy car.
76 Duster
work in progress
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Re: Cummings mileage
[Re: DodgeCharger]
#1530657
11/09/13 09:14 PM
11/09/13 09:14 PM
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Joined: Sep 2009
Posts: 1,805
ky hills
thehemikid
top fuel
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top fuel
Joined: Sep 2009
Posts: 1,805
ky hills
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Previous owner (somewhere in its life) abused 96, 3500, 46re, ext.cab, long bed, 4x4, 280k, stock exhaust with catalytic converter(may be nothing left in there, don't know), & no motor mod's. Tires are taller than stock though.
My 1st pull was with a 28' inclosed with car. Not knowing what speed would give the best mpg, doing ~65-70 I got ~10 mpg. I was hoping for 12. I could feel the wind pushing hard on the flat nose of the trailer. Maybe I had a head wind too, don't remember.
This yr had a chance to check it empty, on a trip 20.7, that surprised me a little.
To town & around & back, don't know.
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Re: Cummings mileage
[Re: thehemikid]
#1530658
11/09/13 09:27 PM
11/09/13 09:27 PM
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Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
Leon441
master
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master
Joined: Nov 2004
Posts: 4,330
Lynchburg, VA
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2005 Dually 18 highway empty and 11 towing a loaded gooseneck.
With some tricks it gets 23 highway and 14 towing.
I have been around some of the high mileage claiming people too. They seem to always have excuses when we are traveling together.
I am perfectly happy with a 7,600 lb truck that will run like stink getting 23 and pull like crazy and get 14.
Leon
Career best 8.02 @ 169 at 3050# and 10" tires small block power.
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Re: Cummings mileage
[Re: thehemikid]
#1530659
11/09/13 09:29 PM
11/09/13 09:29 PM
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Joined: Sep 2012
Posts: 1,563
Janesville, WI
SpareParts
pro stock
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pro stock
Joined: Sep 2012
Posts: 1,563
Janesville, WI
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Quote:
Previous owner (somewhere in its life) abused 96, 3500, 46re, ext.cab, long bed, 4x4, 280k, stock exhaust with catalytic converter(may be nothing left in there, don't know), & no motor mod's. Tires are taller than stock though.
My 1st pull was with a 28' inclosed with car. Not knowing what speed would give the best mpg, doing ~65-70 I got ~10 mpg. I was hoping for 12. I could feel the wind pushing hard on the flat nose of the trailer. Maybe I had a head wind too, don't remember.
This yr had a chance to check it empty, on a trip 20.7, that surprised me a little.
To town & around & back, don't know.
Now do some fuel mods and get more mpg. 12v > 24v
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Re: Cummings mileage
[Re: thehemikid]
#1530660
11/09/13 09:29 PM
11/09/13 09:29 PM
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Joined: Apr 2005
Posts: 2,128
Salt Lake City
camastomcat
top fuel
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top fuel
Joined: Apr 2005
Posts: 2,128
Salt Lake City
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I would never own a gas rig again for towing. Mine gets 15-17 around town and highway, 8.5-11 towing a 40' aluminum goose neck, chipped, exhaust, intake, stock tires and wheels. I tow around 75-80mpg but have tried to haul slower, doesn't much matter. It's a 2004.5, 3500 dually, and I laugh at people who quote 20+MPG, it's BS in my opinion. Every time I get in somebody's rig that gets that kinda mileage, it doesn't. Great power though and long living if you take care of them....
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Re: Cummings mileage
[Re: Eric]
#1530662
11/09/13 10:32 PM
11/09/13 10:32 PM
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Joined: May 2003
Posts: 1,751
Graham, WA
Polarapete
top fuel
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top fuel
Joined: May 2003
Posts: 1,751
Graham, WA
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My Cummins was a 2002 with HO and 6 speed manual. I averaged 17 in mixed mostly city driving. Pulling an 8,000# trailer on the highway it would do 13. I had the gauges (EGT and boost) and 4" stainless exhaust. PO had installed different injectors, a South Bend clutch and I had a timing kit that I never felt the need to install. If you can afford the maintenance, go for it, every man needs to own a locomotive once in his life  I loved it. Would I own another? Only if I needed the power every day and would use it like they should be used 
1986 Dodge Ramcharger 440 2wd, Bracket Racer Under Construction
1998 Ram 2500 QuadCab, new daily driver.
2008 Honda Element
2014 Carry-On 7x14 Cargo Trailer
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Re: Cummings mileage
[Re: montessa]
#1530667
11/10/13 12:32 AM
11/10/13 12:32 AM
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Joined: Jan 2003
Posts: 554
Mesa , Az
Jambbii
mopar
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mopar
Joined: Jan 2003
Posts: 554
Mesa , Az
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I am not sure if I believe some of these mileage claims but once you go Cummins you will not regret it. My 06 gets and average of 16.5 making a tick over 500hp at the rears and will still get about 12-13 towing 10k.
Josh
70 Challenger
1960 Town Wagon P Pump 24v cummins project
06 Mega 3500 Drw 2wd
12 Durango R/T
18 Power Wagon
67 A100
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Re: Cummings mileage
[Re: Jambbii]
#1530668
11/10/13 01:59 AM
11/10/13 01:59 AM
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Joined: Aug 2003
Posts: 43,161
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,161
Bend,OR USA
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My 2006 ram 3500 single wheel 4x4 long bed gets around 20 MPG out on the road empty, it will get 14 MPG pulling my 24 ft. Pace Shadow weighing 8600 lbs on the axles, it will avaerge bewteen 14 and 16 MPG empty in town with some short highway driving. I own a 36 Ft fifth wheel travel trailer with three slide outs, it weighs 11,800 on the two trailer axles and puts around 1500 lbs more on the truck, some on the front axle but most of it on the rear axle. The truck rides and feels better pulling the fifth wheel than it does pulling the car trailer   The best mileage I got towing the fifth wheel from central Oregon to central Arkansas three years ago was right at 12 MPG, the worst mileage was from the eastern border of Okolhoma(SP?) on I 40 to the middle of the Texas panhandle into a direct head wind, it got a little above 8 MPG on that run at 65 to 70 MPH I had a 1998 1/2 24 valve automatic short wheel base 3/4 ton extended cab two wheel drive, it got excellent mileage until Mopar did a "emissions " recall to reflash the computer, it sucked after that   I ended up having a freind, who worked at Cummins Pacific, install a industrial 230 HP program into my onboard computer, that made it better but not as good as it was originally  BTW, I owned three different car hauling trucks before switching to the CTD, 1973 1 ton crew cab Ford 390 with a C6 and 4.10 gears , 1957 1 ton Dodge with a 318 and a four speed, 4.10 gears and the first one was a 1955 Dodge 1 1/2 ton with a four speed and a two speed rear end with 9.50x20 inch tires, it orignally had a 254 C.I. Dodge 6 cylinder flathead truck motor in it and later I put a 1957 392 New Yorher passenger car hemi motor in it. None of the gas trucks ever got more than 10 MPG going to and from the races, never
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Cummings mileage
[Re: SpareParts]
#1530670
11/10/13 05:43 AM
11/10/13 05:43 AM
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Joined: Aug 2003
Posts: 777
Washougal,Wa
Dodge
super stock
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super stock
Joined: Aug 2003
Posts: 777
Washougal,Wa
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Ive had a 1998 12v, 5 speed. Hauled a$$. Only got 15 empty, but boy would it push you back in the seat when grabbing gears. Then a 2000 auto v10, emty 11, with 7 k I got 9 with no power. Now have a 99 with 250k, 5 speed. Doesnt have the power the 12v had, but gets average of 19 empty and 14 with 7k. This is with 354 gears and 35 bfg tire.
Last edited by Dodge; 11/10/13 02:12 PM.
Stand behind your word
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Re: Cummings mileage
[Re: montessa]
#1530673
11/10/13 01:18 PM
11/10/13 01:18 PM
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Joined: Dec 2004
Posts: 2,703
Mohnton, Pa
DodgeCharger
master
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master
Joined: Dec 2004
Posts: 2,703
Mohnton, Pa
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Quote:
Thinking about trading my 2011 Hemi 2500 for a Cummings. I love my truck but was thinking about swapping it while it still worth something. I average about 12 around town and 8 pulling 9000lbs. My current ride has 4.10's and does the job around my part of the country just fine but just want to hear numbers from the real world guys on the Cummings. I am also considering the 6.4 Hemi. I figure the mileage should be on a par or a little worse the 5.7 but with more grunt. Comments, Thanks Jim T.
If it were me I would look for a low mileage 5.9 truck. The new trucks get less mileage and they have a lot more emission stuff on them to give you problems. With a tunner you can make just as much power with the 5.9. I like that I can run other than ULS desiel in my truck. A couple of years ago the power went out in our area. I was very low on fuel. Luckly I had some off road desiel in the shed or heating oil? Put 5 gallon in and was able to drive 15 miles to the next town where they had power to fill up my truck and get supplies.
It is something to consider.
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Re: Cummings mileage
[Re: RUNCHARGER]
#1530676
11/10/13 07:35 PM
11/10/13 07:35 PM
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Joined: Feb 2006
Posts: 1,179
Canada
demon
super stock
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super stock
Joined: Feb 2006
Posts: 1,179
Canada
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Quote:
I would only buy an 06 and older 5.9 and only a manual trans if I was to buy another diesel truck.
Sheldon
I agree. My 12 valve 5 speed gets super mileage, and my buddy has an 06 Mega Cab 6 speed 4x4 and it gets great mileage too. Cheapest thing I own to drive.
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Re: Cummings mileage
[Re: montessa]
#1530678
11/10/13 08:47 PM
11/10/13 08:47 PM
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Joined: Jan 2003
Posts: 11,881
Fallon, Nv
SeventyGTX
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,881
Fallon, Nv
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I don't drive my 04 QC 2wd 305/555 long bed much, so rarely check mileage. But last week I did a 700 mile round trip to Oregon, twice. Both times I got near identical mileage, 19.5 empty, and 16.4 flat towing a 3800 vehicle. This was going over some pretty steep mountain passes, and cruise control not working.
I was by no means babying it, although I-5 in northern California is crawling with CHP's. So, with a speed limit of 55 towing, I rarely went much over 63 mph in that 50 mile section. The rest of the time I was mostly doing 65-70.
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Re: Cummings mileage
[Re: SeventyGTX]
#1530679
11/11/13 03:26 AM
11/11/13 03:26 AM
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Joined: May 2011
Posts: 625
Oakville, Wa
HOTMOPR
mopar
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mopar
Joined: May 2011
Posts: 625
Oakville, Wa
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You guys with your stock cummins' are leaving A LOT of mpg and horsepower at the pump. I had a 95 2500 4x4. Twin turbos, 435 injectors, lazer cut delivery valves 4000 govenor kit and a lot of pump work plus a really good tranny. I averaged 23-24 on the freeway and 16 towing. That was at 600 RWHP. Now I have a 07 6.7 auto 2wd 3500. I have deleted the EGR and DPF all the way to the turbo. Added a free flowing 4" exhaust, AIRAID intake system and a H&S mini maxx programmer. It gets 24 on the freeway at 65 and 15 towing at 65. Its close to 500 RWHP. This is my old 95. click it.. VVV   My 07 
Last edited by HOTMOPR; 11/11/13 03:27 AM.
67 Barracuda, 470" B, Glide, FuelTech FT600, Precision, Ptc, QA1, Calvert, Smith racecraft, Afco, Dana 60. 275 radials
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Re: Cummings mileage
[Re: SeventyGTX]
#1530681
11/12/13 03:07 AM
11/12/13 03:07 AM
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Joined: May 2011
Posts: 625
Oakville, Wa
HOTMOPR
mopar
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mopar
Joined: May 2011
Posts: 625
Oakville, Wa
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In all most every case with a cummins HP equals MPG. My 95 started at 18 mpg stock. My 07 was 16 mpg hwy. Now low 20s.
67 Barracuda, 470" B, Glide, FuelTech FT600, Precision, Ptc, QA1, Calvert, Smith racecraft, Afco, Dana 60. 275 radials
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Re: Cummings mileage
[Re: SeventyGTX]
#1530682
11/12/13 10:46 AM
11/12/13 10:46 AM
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Joined: May 2003
Posts: 13,189
aZLiViN
J_BODY
I Live Here
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I Live Here
Joined: May 2003
Posts: 13,189
aZLiViN
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Quote:
I've had thoughts of pumping mine up a bit with a Smarty, but dread the thought of possibly killing the 48RE automatic. Performance is all about how much you want to spend, and personally I don't need a whole lot more power than my stock 305/555 common rail puts out. I'm usually passing half the vehicles up steep grades with my camper on or pulling a trailer. 
Then leave it be.... increased performance will increased the odds of failure in some manner be it trans, headgasket, or even a melted pistons. Granted you usually have to do some pretty stupid stuff to hurt em, but I've seen plenty! I was pretty disappointed with my 01 4x4 when I got it, but I built a good trans with an awesome torque converter, some RV275 Bosch injectors, and an Edge EZ. Simple low end mods which totally turned the truck around for my towing needs. Personally I question alot of the MPG number stated here, but I also live in a pretty god awfull area with steep long mountain passes. IF...I drive nice I'll see 16 in town. On the highway...17-19 in the 75-85 range. Towing...best ever was 13, usually 10-12 and this is a 24ft enclosed trailer 8K total. One time I was bored and drove across the desert to Palmdale to drop off my race trans and kept the boost low, and the average mpg on the overhead as high as I could. I don't think I went over 60mph the whole day and on some of the steeper grades I was out of OD to keep the numbers "up". I got 23mpg that day.
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Re: Cummings mileage
[Re: dart4forte]
#1530684
11/13/13 04:48 PM
11/13/13 04:48 PM
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Joined: Feb 2003
Posts: 18,582
Rust Belt, SW PA
Silver70
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 18,582
Rust Belt, SW PA
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My 01 is a quad cab, shortbed with 5 speed... I get right around 19mpg and that's all local short trips and I like to get moving fast, not easy on the pedal  When stock I got about 17.5, since added 100hp injectors, edge comp(stays on level 5), 4" exhaust and cai. I also run heavy 33" mud style tires. When towing a lot, which the usual haul is up a long steep hill that's a few miles long to take in scrap car, I avg about 17.5 those weeks. Conservatively my truck is 350/850 to the wheels, sure makes a fun driving truck too
68 Road Runner, 69 Belvedere, 71 Challenger Vert
340 barracuda, 01 Ram CTD, 95 Ram, 04 Ram, 85 Daytona turbo Z
66 GTO, 06 Magnum RT AWD. 07 Ram CTD, 07 Ram
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Re: Cummings mileage
[Re: RODHALL]
#1530686
11/14/13 05:13 PM
11/14/13 05:13 PM
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Joined: Jan 2003
Posts: 13,363
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,363
Marion, South Carolina [><]
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'01 24v Cummins, auto, 3.54 gear, 35" tall tires, 4x4, quad cab short bed.
4" straight pipe exhaust, BHAF, and a small 60 hp Superchips programmer.
Mine gets around 20-21 mpg combined city/highway (mostly highway). Don't do much city driving w/ it and I've honestly never even bothered to check the mileage when towing. I check it by hand, although the dash/overhead readout is always real close as far as the average mpg.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: Cummings mileage
[Re: moretoys]
#1530688
11/15/13 06:10 AM
11/15/13 06:10 AM
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Joined: Nov 2004
Posts: 8,094
Sunnyvale, CA
Jeepmon
master
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master
Joined: Nov 2004
Posts: 8,094
Sunnyvale, CA
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Quote:
lose the egr valve & cooler, and the particulate filter (catalytic convertor).aftermarket companies sell egr removal kits. gain hp/torque and mileage.also need to program pcm computer so the light stays out.
How important is it to actually remove the EGR compared to having the programmer disconnect it?
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Re: Cummings mileage
[Re: SpareParts]
#1530690
11/17/13 01:52 AM
11/17/13 01:52 AM
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Joined: Sep 2009
Posts: 1,805
ky hills
thehemikid
top fuel
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top fuel
Joined: Sep 2009
Posts: 1,805
ky hills
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Quote:
Quote:
Previous owner (somewhere in its life) abused 96, 3500, 46re, ext.cab, long bed, 4x4, 280k, stock exhaust with catalytic converter(may be nothing left in there, don't know), & no motor mod's. Tires are taller than stock though.
My 1st pull was with a 28' inclosed with car. Not knowing what speed would give the best mpg, doing ~65-70 I got ~10 mpg. I was hoping for 12. I could feel the wind pushing hard on the flat nose of the trailer. Maybe I had a head wind too, don't remember.
This yr had a chance to check it empty, on a trip 20.7, that surprised me a little.
To town & around & back, don't know.
Now do some fuel mods and get more mpg. 12v > 24v
I would if the stock trans would live,..but everything I read on the Dodge Cummins Diesel Forum, suggests that eventually it would fail.
To do engine mod's I'd have to do trans mod's too. I know there are some easy cheap engine mod's, but the trans, are not. So I decided to leave it be for now. Not that I couldn't afford it. I just put the money elsewhere. Got used to its 185 hp.
Even with its 185hp diesel in an over 7,000lb 3.54 geared truck w/ 2" taller than oem tires, it pulls better that a 220hp B350 3.54 gear at 5200lb.
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i am waiting till the warranty goes out and then i can really play with it. 
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