11.8 Mph?

[sangell]

11.8 Mpg?

Hello every one. My truck is a 02 ETH/DEE 2500 quad cab 4x4 3. 54. Sunday morning I left on what ended up as a 335 mile round trip.

The first hlaf I was hauling a Jeep TJ for a buddy on my 18' trailer.

Jeep and trailer = about 5300 lbs. I also had maybe 300lbs of stuff in the bed. I set the cruise at 72 to 73 on the way down. I dropped of the Jeep and hauled the emty trailer home at about 74 to 75. I got 11. 8 mpg for the trip (figured by calc). When I left I had about 3900 miles on the truck. I am hoping the mpg goes up once the Cummins breaks in. I am not to upset due to my last truck (a gasser) got 7 to 8 pulling the same load and I love this truck. Oh, I had a good left to right cross wind on the way home. Does the 11. 8 mpg seem ok?

Thanks for the help.



Scott

 

[Mark_Kendrick]

Mileage will go up some with time but that's not that bad. at 70+mph wind is the enemy. a jeep on a trailer is not exactly aerodynamically clean. the weight was not the issue the wind was.



the ETH gets the worst mileage of all the 24v trucks. I would expect you to get 16-19(?20?)mpg empty on the highway and 14-17 in town depending on the weight of your foot and average speed.



a 180* tstat and box and injectors has gotten me about 2mpg. I get a solid 17mpg averaging 80mph empty in my 7600# 3500 4x4 ETH/DEE QC.



FWIW,

Mark

 

[Dane]

Hello Scott- Welcome!



Yes, 11. 8 @70+ is normal imo. BIG difference above 60 MPH. I get about 11-12MPG running 70ish with my cabover, but at 60 I get 15 MPG. Empty I get 18 running 70 and 20 running 60. Problem is I CAN'T DRIVE 60 . Too much fun with all that go pedal underfoot...

 

[Chipstien]

I can't drive................55!

I agree with Mark. Once you get about 15000 hard miles on it you should get about 14 to 16. Don't worry... ..... it only goes up from there.

 

[sangell]

Three replies already, This board is great. Thank you three very much. I am getting about 19mpg hwy empty. I tow a lite load of about 3500 lbs pretty much every day during the week mostly in the city and I am getting about 13 to 14 on those tanks. On the week ends I am either hauling the Chevelle or the Jeep. The Jeep I was hauling on this trip is tall. While on the trailer it's hood was about cab high. My other problem is my foot is quite heavy. I get such a joy out of seeing how quick I get up to speed while towing. Again thanks.



Scott

 

[KatDiesel]

Originally posted by Mark_Kendrick

the ETH gets the worst mileage of all the 24v trucks. I would expect you to get 16-19(?20?)mpg empty on the highway and 14-17 in town depending on the weight of your foot and average speed.

I would certainly think the ETH's get better milage then us auto trucks (with 4. 10's). Before my cam I was averageing 14. 8 now I average 16. 2 empty... I don't tow.



I drive 75 or so on the highway, and accelrate quickly around town.

 

[Runaway]

ETH gets the worst mileage?

Better take mine back to the dealer, 21mpg and some change empty w/ 40K on the clock now. Towing gets anywhere from 11 - 13 mpg range. Depends on how fast and the WIND. I'd say yours is on target Sangell. It will only get better with more tow miles.

 

[wtrenholm]

Milage sounds just like mine when I first got it. Now with 17M on it the milage has improved, summer fuel has probably contributed some improvement also.



I just went to CO and back. Milage was just over 13mpg (all three tanks) on the way down with about 2000# on the trailer cruising 80mph most of the way. The way home (three tanks again) was 14mpg with 5500# on the trailer but cruising about 70mph. It seems the speed/wind is a milage killer.



The overall milage for the last 7M miles before the trip was 15. 8mpg. With a couple tanks being aound 18mpg.



My 94 gasser can't compete with numbers like that.



Wayne

 

[Shooter]

I get about 10 to 12 towing pullee # 2 ( 17+k gcvw )at 75, wind is big factor. 12. 5 to 15 towing pullee # 1 w/ car ( 15k gcvw ) at 75, again wind the factor, Got the same mileage as pullee # 2 with 14k+ 78 Ford F550 tow truck w/ Holmes double boom wrecker ( lots of frontal area ) on trailer to St. Louis. 17 hiway M/T at 80, 13 in city M/T. about 45k of the 58k on the truck is towing. Frontal area has more effect on mileage than weight

 

[KD7GYJ]

Drove from Salt Lake City to Idaho Falls pulling large enclosed trailer. Traveled about 75 MPH going up. MPG were at a surprising 11 MPG. On the way back, I slowed to 65, mileage went to 14 MPG. That trailer is a large umbrella catching wind. The faster the wind, the more fuel to overcome the drag. So 11. 8 is OK for the speed you were traveling.



Blair