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Old Oct 9, 2019 | 08:41 AM
  #31  
kendall69's Avatar
kendall69
Mountain Pass
Joined: Apr 2006
Posts: 178
Likes: 3
From: Palm Springs California
Here is my MPG calculated by hand for every fill-up since new....

13.89

12.50

12.50

12.72

12.50

13.11

17.43

9.50

10.89

5.41

16.82

13.59

17.11

17.02

10.79

11.98

11.30

9.81

9.27

8.68

11.44

13.66

14.13

11.01

12.26

11.34

11.36

10.25

10.64

11.88

11.44

9.46

10.24

11.93

13.76

16.73

16.01

13.70

9.84

9.00

15.23

15.24

15.33

7.31

11.88
 
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Old Oct 9, 2019 | 09:11 AM
  #32  
17 Oaks's Avatar
17 Oaks
Logistics Pro
10 Year Member
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Joined: Jan 2013
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Originally Posted by kendall69
Here is my MPG calculated by hand for every fill-up since new....

13.89

12.50

12.50

12.72

12.50

13.11

17.43

9.50

10.89

5.41

16.82

13.59

17.11

17.02

10.79

11.98

11.30

9.81

9.27

8.68

11.44

13.66

14.13

11.01

12.26

11.34

11.36

10.25

10.64

11.88

11.44

9.46

10.24

11.93

13.76

16.73

16.01

13.70

9.84

9.00

15.23

15.24

15.33

7.31

11.88
Whoaa there, this cannot be, you MUST be driving with the Emergency brake on, fully loaded towing 25,000 lbs otherwise you would be getting 28 MPG...looks a lot like my mpg over the past 5 Superdutys I have owned, each with 35-45k miles on them...could it BE that you and I own the only 2 Superdutys that get mpg as above, could they be Lemons, should we contact a lawyer and get our money back???

Been on forums for a long time and 3 categories of cars: Corvettes, Jeeps and Superduty's and in all of them every few months someone will post a thread on MPG, the longer the thread lasts the higher the numbers for mpg you get...just waiting on a post here that will break into the 30+ mpg...28 28 28 I've got 28 do I hear 30, come on folks its only 2 points, give me 30, 30 30 30, do I hear 30?
 
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Old Oct 9, 2019 | 09:28 AM
  #33  
kendall69's Avatar
kendall69
Mountain Pass
Joined: Apr 2006
Posts: 178
Likes: 3
From: Palm Springs California
My numbers reflect a true snapshot of my MPG. Lower numbers are towing heavy dump trailers to the dump, 7K-8K per load. High MPG reflect highway trips, overall average numbers are me getting groceries or Ben & Jerry's ice cream you know driving like a regular person not putting it to the floorboards or driving like I'm in Florida with my blinker on.
 
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Old Oct 9, 2019 | 09:29 AM
  #34  
TX Crawler's Avatar
TX Crawler
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Joined: Jun 2018
Posts: 341
Likes: 87
From: DFW
This simple and effective modification really made a huge difference for me.
 
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Old Oct 9, 2019 | 09:29 AM
  #35  
SESWIM's Avatar
SESWIM
Senior User
Joined: Aug 2016
Posts: 477
Likes: 3
Originally Posted by 17 Oaks
Whoaa there, this cannot be, you MUST be driving with the Emergency brake on, fully loaded towing 25,000 lbs otherwise you would be getting 28 MPG...looks a lot like my mpg over the past 5 Superdutys I have owned, each with 35-45k miles on them...could it BE that you and I own the only 2 Superdutys that get mpg as above, could they be Lemons, should we contact a lawyer and get our money back???

Been on forums for a long time and 3 categories of cars: Corvettes, Jeeps and Superduty's and in all of them every few months someone will post a thread on MPG, the longer the thread lasts the higher the numbers for mpg you get...just waiting on a post here that will break into the 30+ mpg...28 28 28 I've got 28 do I hear 30, come on folks its only 2 points, give me 30, 30 30 30, do I hear 30?

HAHA. Great post. So true. I guess there are Unicorns after all. LOL

Sam
 
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Old Oct 9, 2019 | 09:34 AM
  #36  
SESWIM's Avatar
SESWIM
Senior User
Joined: Aug 2016
Posts: 477
Likes: 3
Lightbulb

Originally Posted by TX Crawler
This simple and effective modification really made a huge difference for me.

Priceless!!!!!!!!!!!!! I bet it has "Greenies" scratching their heads.
 
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Old Oct 9, 2019 | 10:06 AM
  #37  
6.2caribou's Avatar
6.2caribou
Laughing Gas
5 Year Member
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Top Answer: 1
Joined: Sep 2017
Posts: 1,143
Likes: 269
From: Southwestern Pa.
I use the Fuelio app to track my fuel usage...a much more accurate method than is the truck's mpg LoM. FWIW, my truck's LoM initially showed mpg that was .5-.8 mpg higher than actual. After tweaking the eng. values a bit, the truck's mpg LoM now is consistently .2 mpg low. The, higher than average, first 5k miles were from a trip out west just after I purchased this truck. Total miles are 24k. Current OAL mpg is at 11.96...much cheaper to operate than my old 6.7 Cummins was at it's 12.5 avg.


 
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