Just for the fun- fuel Milage?

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I am just amazed at the fuel milage my Cummins delivers. At the risk of being the first liar it varies now between 20 and 26.7mpg empty around town with mostly 70% freeway and 30%stop and go. I have a 3 1/2" exhaust and have changed from a 21 to an 18cm turbo housing, no pump adjustments at all.My milage went up about 2-3mpg with the mods. I am curious as to what others are experiencing and with what engin modifications.This could be interesting. I also wonder how this info would compare to a similar post on the Newer truck pages. Be Honest Now.(I bet it will get even better milage when I get a TDR sticker in the window)

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92 D250 5spd 3.54 std cab, Banks exhaust,Isspro EGT&Boost gages,18cm Turbo.
67 Dodge R/T
67 Charger
98 Grand Cherokee
97 Stratus
Mopar Only Here
Tulsa 2000 Survivor.

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20 to 22 depending on fuel, and season.

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'92 CUMMINS/DODGE 5SPD, 4WD 16cm2 turbo, mod. pump and injectors, max.flow exhaust, K&N....
S.T.O.K.E.D. ....accept no substitutions
www.turbodieselregister.com/memberimages/r0300343.jpg (http://www.turbodieselregister.com/memberimages/r0300343.jpg)
www.turbodieselregister.com/memberimages/r0300341.jpg (http://www.turbodieselregister.com/memberimages/r0300341.jpg)

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I was getting around 20 mpg. Two weeks ago I sent it in for more power! They rebuilt the injectors with the 215 tips. Removed the ve pump and recalibrated it. They are estimating that it is now putting close to 210 hp. out. I have no idea on what that did to my torque though. Now even though I have been playing with it and haven't lost any races http://www.turbodieselregister.com/ubb/smile.gif I got 21 mpg. on first tank. I'am going to have to refill for the second time on Monday. I think it may go up higher if I would quit running it so hard. Oh well I don't think that will happen anytime soon!

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'93 D250 210hp from mod pump and inj 5spd K&N filter straight exhaust

[This message has been edited by andyr (edited 02-20-2000).]

[This message has been edited by andyr (edited 02-20-2000).]

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I get 16-17 combined city/highway driving.
92 350 4x4 dually auto 3.54 gears.

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I average around 21 mixed hwy/city. If I drive straight hwy at 70 to 75 mph I get a little better than 23. 92 D250 auto, 3.54's 192,000 miles.

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I live in the foothills where there are no flat long highways,mostly hills,my 93 is stock 4x4 with the 5 speed,and Ill get 19mpg on freeway and around town.

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I hail from the same neck of the woods as First Gen with alot driving in the foothills of the Sierra's and I have been getting around 17 with a mix of city and highway driving. The best I have seen is 20 on the highway.
Pat
91 4x4, auto, only aftermarket stuff is my Borgeson steering shaft which resulted in a .004 mpg increase and no fear while cornering...

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I do alot of commuting, so about 25 miles highway and 15 city one way. Average about 21 MPG.

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Jason's Lil' Mack - 89 D250LE 2WD 5Spd 3.55 Reg Cab. K&N,"tweaked pump", 3.5" Exst straight,E&M Custom seats. Bosch H4, PIAA 80W/80W HdLites. Bosch 100W Driving. Bosch 55W Fogs.
215,000 miles (350,000 Kms)

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Most of my driving is at 100 kmph (60mph) on flat groing in cruise. Average between 22 and 25 mpg Imperial gallons. When towing a 6500 lb trailer, drops to 15 - 17 mpg.

Ian.

Injectors changed, 3.5" exhaust.

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Wow! I'm really impressed. I have a 92 club cab, 4x4, auto/3.54, banks turbo & exhaust, turned up, K&N and 136,000 miles. I drive pretty easy and I only get 17, so what are you guys doing different???

Butch

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92 clubcab,4x4,auto
135,000 miles

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So far I have seen a high of 27 mpg (Imperial) highway while taking it easy and unloaded. With the camper on, 18-20 mpg seems to be normal.
Only had the truck 8 months. It only has 108000 km so far.

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91.5 D250 5 speed

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I have kept a log of all the diesel fill-ups and the kilometers since I purchased the truck in 1992. My best mileage on the highway going to Williams Lake (unloaded truck) has been a little over 26 miles per (imperial) gallon. The average total mileage since 1992 for over 62,000 km is 21.61 miles per (imperial) gallon. The bulk of my driving is done within the city limits.

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92LE,Cummins,tach,4x4,5spd

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I usually get around 19 to 20 mpg US(empty) when driving on trips with a heavy foot. My high has been 21 and my low was 15 (winter fuel from an unknown station). While having a total gross weight of 12,000 lbs I averaged 17 mpg from Mississippi to Boston. This is with a bone stock truck. I am waiting to see if the 16 cm2 housing makes a difference.
Matt

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90 3/4 ton, 4x4, 5-speed, 3.54 gears.

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I got 22-23 mpg when commuting (25 miles one way, about 70 percent highway). I've gotten a high of 26.5 mpg while on a trip. I got around 18 mpg towing a 21 foot travel trailer. This has been pretty consistent throughout the life of the truck, even after turning up the fuel pump at around 100,000 miles. I'm now using my Jetta TDI for my commute (50-55 mpg).

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1989 D250, 727 auto trans, 16 cm^2 turbo housing, Banks Powerpack, Turbo Shop Intercooler

1998 VW Jetta TDI

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I forgot to specify that it was in MPG US. In MPG imperial gallons I get what Doug gets, around 27 MPG Imp.

I had to correct the Imp MPG,My math wasn't very good, its around 23-24 MPG Imp.. Sorry about that http://www.turbodieselregister.com/ubb/redface.gif.

Jason

[This message has been edited by Lil' Dog (edited 03-10-2000).]

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Being from Texas I'm not familiar with Imperial gallons. Can someone enlighten me so I can relate these different results. I could dig out some old books but it would be easier if someone would help out.I forgot there was so many Canadians on the sight.

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preleeguy

1 imperial gallon = 4.546 litres
1 US gallon = 3.785 litres

therefore one imperial gallon is 1.2009 times larger than one US gallon
or
one US gallon is .83268 the size of one imperial gallon.


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92LE,Cummins,tach,4x4,5spd

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I can only seem to muster 17 mpg from mine. I'm a little baffled by the thing since I have the Amsoil in it, and try not to have a heavy foot. I just got my K&N, so we'll see if it helps. I'm waiting until I run this tank through it until I pour the bottle of Staydyne in. I'll post results once I run this tank through it.

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'93 D350 2wd Club Cab 5-speed, 131,000 miles, Amsoil throughout, Borgeson Steering Shaft,K&N

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With the exception of a brief mpg "scare" that I was able to track down with thanks to the forum, my '91 has done 20-22 around town and 21mpg hwy @ 70-75mph. Bone stock.

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Stock '91 sc W250, 5sp, 3.54's, 235/85's,250k+.

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Just made a 500 mile round trip and averaged 18.7 mpg. 90% was @ 75-80 mph, 30-40 deg. temp, at least 1k pounds of snow in the bed. Some hills, mostly windy.

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'89, CC, SB, 5sp, 3.54, 16cm2 housing, maxed fuel, KN, Banks exh w/muffler, Autometer liquid filled gauges, Factory tach option, 100% Dyna-Mat, Horton fan clutch, Firestone air bags, Chrysler V-twin air comp, 2.5" lift, Rancho Shocks, Alcoa LTS, BFG 255/85/R16 MTs (33.3")

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I need a down hill and a strong tail wind to get over 17 mpg.

Rodney

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92 2500 Reg. Cab LE
Dark Spectrum Blue and Silver 4x4 Auto
211,000 plus miles
16cm2 housing, Isspro guages.

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I get 18.5 ave running empty, and 13-15 pulling a 26' 6200 lb travel trailer.

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Bill Red 90 4x4 5 spd, 4.10s, banks stinger, K&N, Racor remote filter

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Last summer, we travelled over 9000 miles on our way from Sacramento to the TDR Nationals & return via Maine, Quebec and points north. Averaged out to 22.7 mpg. Average driving speed in 5th OD (Gear Vendors) was 70-75.
When hauling my 25 foot sailboat which weighs 9200 pounds with trailer, we averaged 13.6 from Sacramento to Anacortes, Washington and return.

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'93 D-250 Club Cab, Emerald Green & Gold, 5-speed w Gear Vendors OD, 77K , ASC Sun Roof, Horton Fan, Transfer-Flo 45 gal tank/toolbox combo

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on my 1993 d250 2-wheel drive/5-speed with k&n air filter and 4-Inch exhaust I get anywhere from 20 to 25 mpg. It's a cool engine anyway you look at it--hope to see ya'll in minden,NV in may!!
my pager #415-721-6168 Greg

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I got about 19 1/2 on my last tank going back and forth to work etc. I haven't done any upgrades yet.
My truck has 4.10 gears w/5 sp. You guys doing 70+ mph, I don't think my gears will go that high. I may try some 255/85/16 tires to up speed somewhat.

92 W250 5sp Stock

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I finally finished off the tank with the Staydyne Performance formula in it, but I don't think things changed much. I got 18 mpg. I guess I'll just keep modifyin', I need a different exhaust, 16cm housing,... I'm sure that I can think of some more things down the line. Until then, Keep runnin' strong.

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'93 D350 2wd Club Cab 5-speed, 131,000 miles, Amsoil throughout, Borgeson Steering Shaft,K&N