4x4 fuel mileage

[Archive]

What kind of fuel mileage are you guys getting?I dont think I have ever goten over 16 mpg. I get around 14 driveing around town and short trips. Is this normal?I thought it would be better.

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1998. 5 4x4 cummins auto.
Flame red SLT.
3. 54 gears.
2inch front leveling kit.
285/75/16 Country squire radial R/T tires on stock chrome wheels.
JVC cd player.
lots of stainless and aluminum trim.
4 inch exhaust turbo back straight piped.
K@N filter.
electronic speedo recalibrator.
Aluminum 120 gallon service tank and tool box combo. VA

 

[Archive]

I get 14. 8 in town and 17 on the hiway, unloaded. Would like it to be better, but auto and 4x4 both hurt mileage.

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99QC4x4,auto,3. 54,Blue box,275inj,K&N (Scotty type),BD t/c,BD valvebody,60 gal fueltank

 

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Remember, if you are calculating very short trips - where the truck never gets a chance to travel at sustained speed in top gear, 14 mpg isn't all that bad. Under these conditions you are constanly accelerating - which will never net very favorable mileage results. Driving around town can mean two completely different things for different people. In the middle of LA, I can hit a traffic light every 150 yards, 14 wouldn't be so bad under these conditions.
If I calculate my mileage from the time I get on the freeway to the time I get off, I can do around 19 depending on how fast I drive. But that doesn't include any time on the surface streets - which instantly brings down the average. Just some tings to think about. Good luck,
Craig

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2000, 2500,QC,4x4,white,tow,leather,6 spd,4. 10, 4" exhaust - turbo back, K&N, Balls of steel hitch, line-x bedliner, Autometer Ultralite pyro and boost... wouldn't dare add anything to void that good ole DC warranty!

 

[Archive]

16. 5 around town. Not a whole lot better on the highway [ wife says I drive to fast ] #ad


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Paul A. Schmidt
95, 4X4, SLT 2500, 5 spd. , 4. 10, 270 hp. ,675ft. lb. TST, AFC spring kit,215hp. injectors, Pacbrake, Walker muffler,
GearVendor O. D.
Eastern PA.

 

[Archive]

19. 5 in town, 19. 2 on highway I find that if I travel above 70 mph. the mileage drops, as far as driving below 70 mph. I haven't tried it's one of the great perks of living in this great state lots of wide open space.

NRA FOREVER

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99 2500 QC SB 4x4 5sp 3. 54 LSD 285/75/16 Rancho 9000s A. R. E. Camper Shell etc. etc.

 

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Stubbe: Most of the time I get 20-21. 5 on highway trips with '96 Ram, 5sp. 3. 54s, 4x4. I use Amsoil throughout. Drive 65-67, 2000rpm or slightly less. I use premium Roadmaster diesel from Cenex. The fuel makes a difference. Some other brands and straight #2 offer decreased mileage in my truck. Jerry.

 

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My driving is a combination of city and highway, and I don't baby it! (75-80 on hwy) My last tank I got just over 18 mpg. Usually around 17. 75 mpg. Once I only got 15. 75 on a tank. I certainly can't complain, just sold my 88 Chevy van that only got about 9-12 mpg.

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99 Quad Cab, White, SLT, 4x4, 5-sp, 3:54's, LSD, Loaded except cab lights and leather, Raven cap (cab high), Rhino liner, Stainless Nerf Bars, Stainless Rocker Panels, Tow package, Pro-flap mud flaps (Stainless Cummins "C" coming to add to rear flaps), Power Edge (my first BOMB), Valentine One, Amsoil throughout, CB Radio.

Things to come;

Hadley Bully Air Horns, 285/75R16 Cooper A/T's, SPA Pyro and Boost gauge, 4" exhaust system, DDIII's, Psychotty Air Filter.

NRA Life Member! (Need to protect our rights and FREEDOM!!)

 

[Archive]

Average around 17 empty. Most of my driving consists of a 30 mile commute. I work evening shift and often as not have my foot in it. Drops down to around 15 towing. Truck weighs 7600 empty.

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97'3500 SLT CC,4x4,5 spd,4. 10,83K,EBY aluminum flatbed,Dee Zee running boards,Dee Zee Platinum drop boxes,Mag-Hytec,BD Brake,Pyscotty,Jardine 4",TST plate,Bilstein,Isspro,KN,PIAA Superwhites,25' 14k beavertail gooseneck,Hale 2 horse BP

 

[Archive]

I get about 17 when I fill up. That's usually a combination of highway and city driving. Quad cab 4x4 with 4. 10 gears and 255/85R16 tires. That's figuring in 10% for the bigger tires. If I'm really on it in town for a full tank it dropps to a little over 15. I got 18 on the highway once. But only once. Usually like the throttle too much. #ad
Pulling a 4 place enclosed snowmobile trailer I get 12.

 

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Unloaded, highway, 60-65MPH averages 26. 5 MPG. In town, 23. 5 MPG . Truck is stock except for K&N filter. Imperial gallons are about 1/5 greater in volume - so - that would make it about 21. 5 MPG (US) and around 18. 5 MPG(US) in town, if my calculations are on. I avoid extreme acceleration and keep my foot out of it as much as possible. Fuel economy was one of the important reasons I decided on the Cummins.

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'97 2500 CC 4x4 5spd 3. 54LSD all stock except K&N Air, EGT&Boost Guages - next Psychotty & 4" exhaust

 

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My last tank came in at 19mpg - combined mileage. 3000 miles on it now.

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2001 2500; SLT; 4x4; QC; LWB; Auto; 3. 54 LS; Camper; Tow; Sliding Rear Window; Travel Convenience Group; Cab Clearance Lamps; Forest Green

 

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19. 1 average on a 2700 mile trip. 8000 on truck. 3. 54 auto 4x4 275 injectors 285 bfgs.

 

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All miles running basically empty.

According to computer 16. 5 mpg around town.

Calculated 18. 1 mpg this past weekend on round trip from Fayetteville to Conway to Heber Springs, AR and back. 580 miles. 350 miles was I540 and I40 at 75-80 mph. Rest was US65, AR25, and other state highways at 45-60 mph.

At 2500 rpm running 75 mph thanks to 4. 10 gears.

MPG has improved as miles are added to truck. Might be as good as it is going to get - might not. Added K&N a few days before trip.

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"Red Rage" - 2001 2500 SLT 4x4 QC Lowered Rear End 2. 5" 5spd, 4. 10 K&N Stock Replacement - 9,000 miles and counting! 30' 5th Wheel

[This message has been edited by bennettj (edited 07-10-2000). ]

 

[Archive]

The Mule gets 19. 5 around town, use 5th gear when I hit 50-55 mph. Hiway went down to 18. 5 used to get 20 to 21. Think drop is do to stickier tires.

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Missouri Mule 96 White 4X4 ST club cab,(grey int. ),5 spd, 3. 54 reg dif, 8 ft bed, 1 ft high cheater boards, front and side of bed,Pofile V bug shield,
99 Freight liner FL60 blue Cummins 24v 215 hp, 520 torgue,6 spd 3. 59 no spin rear, 16 ft dry box (white) 19. 5 low profile tires,Weight 11,000, gvw 23000, 11 to 12 mpg
Bill Thomas (Wild Bill)

 

[Archive]

I have been keeping track of my mileage on my Palm Pilot here it is.
Mileage
1-8-00 , 32 gal 440 miles hwy and town . 14 mpg

2-5-00, 28 gal 425 miles 75% hwy.
15 mpg
2-18-00, 26 gal 400 miles 80% hwy 15 mpg

3-1-00, 20 gal 340 miles 95% hwy in mountians 17 mpg

3-4-00, 15 gal 370 miles 100% hwy Bay Area to Santa Barbra avg. 75mph . 24. 6 mpg

3-5-00, 20 gal 360 miles 100% hwy Santa Barbra to Bay area avg 65mph. 18mpg

3-26-00, 31 gal 423 miles 50% hwy 50% around town 13mpg

4-21-00, 26 gal 384 miles combination of driving 14 mpg.

4-23-00, 18 gal 234 miles all highway towing Jeep @ 70mph. 13 mpg

5-13-00, 25 gal 342 miles 50% around town 50% highway 13. 5 mpg

5-26-00, 22 gal 355 miles 50% around town 50% highway 16 mpg

6-3-00,24 gal 400 miles 75% highway 25% windy mountain roads 16. 6mpg

6-30-00, 30 gal 430 miles, mostly around town. 14. 3 mpg

 

[Archive]

Much wisdom in cjohnson and other posts. Little differences add up to big differences in mpg, especially driving style and speed.
I've seen low's in the 13. 's (headwinds + load + hills + speed + wind loading from boats up on on roof racks) to high of 21. 5 (no load, some secondary roads at 60 mph + some freeway at 65 mph, light foot all the way).
Yesterday, I left the engine and A/C running while I changed a tire. Trip computer dropped from 19. 2 to 17. 6 just due to the idling while I changed the tire. Drove with very soft foot the rest of the day, got 20. 1 overall for that tank. I'm sure I would have been over 21. 5 if not for that #&%&$ piece of steel that took out my sidewall! I find the trip computer, even though somewhat inaccurate, really helps me to milk the most out of a tank of diesel. So far, my best estimates of mostly freeway miles:
18. 0 at 70 mph (just below 2000 rpm)
20. 0 at 65 mph
Currently have about 8700 miles on my truck (one month old). So far, no synthetics, no performance related mods. Signature shows other specifics on my truck. I should mention that these are the numbers I get when I really milk it; if I just pay no attention to the trip computer and drive, subtract 1 to 2 mpg!
Should your mileage be better? I don't know - how fast do you go, how many stoplights in your town, etc etc etc.


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2001 ETH, QC, LWB, 4WD, 3. 54, SPA Pyro & Boost, Leer Cab-high shell, ARB's soon

[This message has been edited by HC (edited 07-11-2000). ]

 

[Archive]

I have a 22 mile commute each way to work 20% city 80% Hiway. I run right at 20. 9 - 21. 4 depending on my lead foot. freeway only run on trips empty running at 80 MPH this summer I have got as hi as 23. 8, but normally around 22. 5. Towing my house trailer 24' Great Divide I get 14. 8 - 15. 8, I do drive slower when towing (70 - 75max).

The biggest improvements to my milage have been loosing the cat and the Psycotty Air system. Both together are good for 1. 5 MPG.

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<font color=bright red>Dee'sel</font>
<font color=blue>97 2500 Club 4X4 3. 54 LSD 5 speed, K&N Air filter RE0880 & Psychotty,
TST #11 all the way forward, #12 for winter, AFC spring kit,
TST EGT gauge & TST 0-60 boost gauge in A Pillar, Hypo clutch ass.
Cat-be-gone, 4" Dynomax Bullet muffler, Crome 4" turn down, </font><font color=green>
AmsOil 80W-90 in Trans, Amsoil 15W-40 Oil W/ Bypass system
Lund WInter front, Leer Cab Level Shell,
235/85R16 Goodyears</font> *NRA/USPSA member and proud of it*



[This message has been edited by drawson (edited 07-17-2000). ]

 

[Archive]

With 2700 miles my beast is getting 16 mpg in town and 18. 5 highway at 75 mph. After i do all the synthetic fluids and put more miles on I think I should see 17 and 20 which is great for a big beast. When I pull my 7600 lb boat I am getting about 11 but this is city driving.

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THE ROCK/2001,4X4,SB,AT,SPORT,CL,CAMPER PACKAGE,WHITE,MOPAR MOLDED SPLASH GUARDS,STEELHORSE NERF BARS,BEDRUG LINER,CAB HIGH CAP.

 

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I calculated my average milage over 25,000mi the other day for my 1998 12V 4X4 and got 17. 6mpg,about 70% of that is short, in town trips. In town driving only, average in the 16mpg range. Highway average around 19mpg running empty@ 70mph. Best milage ever was 21mpg on a trip to Wyoming.

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David Edwards Austin,TX
1998 2500 4X4 Reg. Cab 12V NV4500

 

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I only have 1600 miles total and have averaged about 14 around town and just under 18 on a trip to Vegas. I'm a little dissapointed, but I expect as she breaks-in, she'll get better mileage. (These are with out cargo)

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'01 2500 SLT+, QC, LWB, 4X4, 3. 54s, AT, every option but running lights! To come: 19. 5"s (?), lift, Line-X, Exhaust brake, 4" turbo to tail, etc...

'98 DUCATI ST2 "Bombed" 944CC with Ducati Performance Carbon Fiber Exhaust, F. I. M. Chip, K&N and "modified" air box.