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Posted: 3/2/2015 5:58:10 PM EDT
2003 duramax
Uhaul trailer with jeep wrangler on it
Cruise control at 70 mph using power tune 2
Have another 100 miles to go or so.

Posted Via AR15.Com Mobile
Link Posted: 3/2/2015 5:59:24 PM EDT
[#1]
9 MPG
Link Posted: 3/2/2015 5:59:52 PM EDT
[#2]
I'd guess 12 - 14, if the road is flat.
Link Posted: 3/2/2015 6:00:06 PM EDT
[#3]
13.7
Link Posted: 3/2/2015 6:00:22 PM EDT
[#4]
35mpg
Link Posted: 3/2/2015 6:00:37 PM EDT
[#5]
Does it matter?
Link Posted: 3/2/2015 6:00:40 PM EDT
[#6]
7.5
Link Posted: 3/2/2015 6:00:43 PM EDT
[#7]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
I'd guess 12 - 14, if the road is flat.
View Quote

 

Me too.
Link Posted: 3/2/2015 6:01:39 PM EDT
[#8]
7 MPG
Link Posted: 3/2/2015 6:02:14 PM EDT
[#9]
11.1
Link Posted: 3/2/2015 6:02:32 PM EDT
[#10]
87  
Link Posted: 3/2/2015 6:02:33 PM EDT
[#11]
8mpg
Link Posted: 3/2/2015 6:02:35 PM EDT
[#12]
10.25
Link Posted: 3/2/2015 6:02:47 PM EDT
[#13]



Should have towed the duramax with the jeep and gotten better mileage
Link Posted: 3/2/2015 6:02:48 PM EDT
[#14]
A number of years ago when we had our 2004 Durango with the 4.7L V8, we towed my sons loaded down Cavalier with a tow dolly, had the Durango fully loaded with luggage and 3 of inside along with the air conditioner running.  Went from Illinois to Denver and kept the speed no higher than 65 mph with it on tow/haul.  I averaged nearly 21 mpg.  I still can't believe that.
Link Posted: 3/2/2015 6:02:48 PM EDT
[#15]
12 mpg
Link Posted: 3/2/2015 6:03:21 PM EDT
[#16]
DIC will show 18 or so.

Hand calculated is probably closer to 14.

Link Posted: 3/2/2015 6:08:55 PM EDT
[#17]
Are you still posting on ARFCOM while driving?
Link Posted: 3/2/2015 6:10:15 PM EDT
[#18]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
DIC will show 18 or so.

Hand calculated is probably closer to 14.

View Quote



Will be hand calculated,  DIC is way screwy because of the tune.

Posted Via AR15.Com Mobile
Link Posted: 3/2/2015 6:10:41 PM EDT
[#19]
8.7 mpg, of course.
Link Posted: 3/2/2015 6:11:37 PM EDT
[#20]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Are you still posting on ARFCOM while driving?
View Quote


Just finishing up my subway llunch.ill post results in 2 hours give or take.

Posted Via AR15.Com Mobile
Link Posted: 3/2/2015 6:12:09 PM EDT
[#21]
40 rods to the hogshead.
Link Posted: 3/2/2015 6:12:12 PM EDT
[#22]
1



(Price is Right rules)
Link Posted: 3/2/2015 6:12:19 PM EDT
[#23]
Probably about 14-16?
Link Posted: 3/2/2015 6:12:51 PM EDT
[#24]
Discussion ForumsJump to Quoted PostQuote History
Quoted:

Will be hand calculated,  DIC is way screwy because of the tune.

Posted Via AR15.Com Mobile
View Quote


Does this mean you don't know the answer yet and we won't find out until you fill up... and that that may not be for a few days?


Day 1
Link Posted: 3/2/2015 6:13:20 PM EDT
[#25]
16 mpg
Link Posted: 3/2/2015 6:13:20 PM EDT
[#26]
Discussion ForumsJump to Quoted PostQuote History
Quoted:


Does this mean you don't know the answer yet and we won't find out until you fill up... and that that may not be for a few days?


Day 1
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Quoted:

Will be hand calculated,  DIC is way screwy because of the tune.

Posted Via AR15.Com Mobile


Does this mean you don't know the answer yet and we won't find out until you fill up... and that that may not be for a few days?


Day 1

I hate threads where OP makes you wait.
Link Posted: 3/2/2015 6:13:28 PM EDT
[#27]
17.87. Exactly. I get much better mileage at 60 than 70 with my lower gears. 22 vs 18.  (Unloaded)
Link Posted: 3/2/2015 6:13:54 PM EDT
[#28]
BTW if I remember right those trailers clearly say 55mph max. I'm telling
Link Posted: 3/2/2015 6:15:05 PM EDT
[#29]
87 K per liter
Link Posted: 3/2/2015 6:22:25 PM EDT
[#30]
8 mpg
Link Posted: 3/2/2015 6:25:08 PM EDT
[#31]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Are you still posting on ARFCOM while driving?
View Quote


He said cruise control. Duh.

Link Posted: 3/2/2015 6:30:25 PM EDT
[#32]
12.5

No way it's better than that, hand calc'd.
Link Posted: 3/2/2015 6:32:53 PM EDT
[#33]
12.8 MPG
Link Posted: 3/2/2015 6:33:48 PM EDT
[#34]
8 at best
Link Posted: 3/2/2015 6:35:49 PM EDT
[#35]

Discussion ForumsJump to Quoted PostQuote History
Quoted:


A number of years ago when we had our 2004 Durango with the 4.7L V8, we towed my sons loaded down Cavalier with a tow dolly, had the Durango fully loaded with luggage and 3 of inside along with the air conditioner running.  Went from Illinois to Denver and kept the speed no higher than 65 mph with it on tow/haul.  I averaged nearly 21 mpg.  I still can't believe that.
View Quote
No one else can believe it either.



 
Link Posted: 3/2/2015 7:15:54 PM EDT
[#36]

Discussion ForumsJump to Quoted PostQuote History
Quoted:


Probably about 14-16?
View Quote


Pretty much my guess also. First thought 14 but I'll go up to 16.



 
Link Posted: 3/2/2015 7:20:21 PM EDT
[#37]


I only average about 5.5 with my car hauler.




-p.
Link Posted: 3/2/2015 7:24:43 PM EDT
[#38]
Are you on a treadmill?





Link Posted: 3/2/2015 7:25:07 PM EDT
[#39]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
No one else can believe it either.
 
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Quoted:
A number of years ago when we had our 2004 Durango with the 4.7L V8, we towed my sons loaded down Cavalier with a tow dolly, had the Durango fully loaded with luggage and 3 of inside along with the air conditioner running.  Went from Illinois to Denver and kept the speed no higher than 65 mph with it on tow/haul.  I averaged nearly 21 mpg.  I still can't believe that.
No one else can believe it either.
 


Its a Dodge thing.   A Cummins owner would tell you that he got 35 mpg on the same trip.    LOL.

Link Posted: 3/2/2015 7:25:42 PM EDT
[#40]
Quoted:
2003 duramax
Uhaul trailer with jeep wrangler on it
Cruise control at 70 mph using power tune 2
Have another 100 miles to go or so.

Posted Via AR15.Com Mobile
View Quote


5
Link Posted: 3/2/2015 7:25:48 PM EDT
[#41]
I used to get about 9.5 with a similar setup, but a much heavier Land Cruiser and an 01 Duramax.
Link Posted: 3/2/2015 7:27:29 PM EDT
[#42]
10.8. Do I get a LaRue upper if I'm right?
Link Posted: 3/2/2015 7:33:51 PM EDT
[#43]
Link Posted: 3/2/2015 7:39:08 PM EDT
[#44]
Discussion ForumsJump to Quoted PostQuote History
Quoted:


Its a Dodge thing.   A Cummins owner would tell you that he got 35 mpg on the same trip.    LOL.

View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Quoted:
Quoted:
A number of years ago when we had our 2004 Durango with the 4.7L V8, we towed my sons loaded down Cavalier with a tow dolly, had the Durango fully loaded with luggage and 3 of inside along with the air conditioner running.  Went from Illinois to Denver and kept the speed no higher than 65 mph with it on tow/haul.  I averaged nearly 21 mpg.  I still can't believe that.
No one else can believe it either.
 


Its a Dodge thing.   A Cummins owner would tell you that he got 35 mpg on the same trip.    LOL.



LOL, cause it's TRUE!

If flat terrain,12ish
Link Posted: 3/2/2015 7:40:53 PM EDT
[#45]
15MPG is my final answer. Original injectors?
Link Posted: 3/2/2015 7:47:28 PM EDT
[#46]
A while back my buddy drove me to STl to pickup 3300# of Lino Type and his computer showed better mpg with the 3300# in the bed of his Dodge diesel then when we were empty, empty we were 22mpg loaded 23.5
Link Posted: 3/2/2015 7:48:15 PM EDT
[#47]
Link Posted: 3/2/2015 7:48:48 PM EDT
[#48]
10-12
Link Posted: 3/2/2015 7:50:29 PM EDT
[#49]
Discussion ForumsJump to Quoted PostQuote History
Quoted:


Its a Dodge thing.   A Cummins owner would tell you that he got 35 mpg on the same trip.    LOL.

View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Quoted:
Quoted:
A number of years ago when we had our 2004 Durango with the 4.7L V8, we towed my sons loaded down Cavalier with a tow dolly, had the Durango fully loaded with luggage and 3 of inside along with the air conditioner running.  Went from Illinois to Denver and kept the speed no higher than 65 mph with it on tow/haul.  I averaged nearly 21 mpg.  I still can't believe that.
No one else can believe it either.
 


Its a Dodge thing.   A Cummins owner would tell you that he got 35 mpg on the same trip.    LOL.



MPG means something totally different in Cummins-land. Million Pounds of black smoke per Gallon.
Link Posted: 3/2/2015 7:51:34 PM EDT
[#50]
Regardless of what the OP says, it won't be the truth.
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