Monday

Gather App
Named'em Tamed'em said:
I wouldn't trade my '06 Dodge 3500 4x4 for anything. On a recent 3200 mile trip to Utah I got over 19mpg (hand calculated).
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I've had a lot of dodges and still do, I don't know that I've ever achieved the 19 or 20 MPG level unless on an occasional trip on roads where I couldn't go very fast and there weren't many hills. Maybe I drive too fast. Mine usually fall into the 16.5 to 17.5 MPG range if I'm not pulling anything. The hemi will get about 15to 16. A strange thing that does happen though is that my offices are in Houston and our ranch is in NW Louisiana. I will almost always get 1 mpg more going from the ranch back to Houston that driving home from Houston to Stonewall. Bought the wife a diesel jeep last year and it will get 30 to 32 mpg. Lot less vehicle I know but that's still pretty impressive.
 
Stonewall Joe said:
I've had a lot of dodges and still do, I don't know that I've ever achieved the 19 or 20 MPG level unless on an occasional trip on roads where I couldn't go very fast and there weren't many hills. Maybe I drive too fast. Mine usually fall into the 16.5 to 17.5 MPG range if I'm not pulling anything. The hemi will get about 15to 16. A strange thing that does happen though is that my offices are in Houston and our ranch is in NW Louisiana. I will almost always get 1 mpg more going from the ranch back to Houston that driving home from Houston to Stonewall. Bought the wife a diesel jeep last year and it will get 30 to 32 mpg. Lot less vehicle I know but that's still pretty impressive.
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Cruise control set at 65 mph helps, just idling along almost.
 
On my Cummins it seems like 1800 RPMs is the sweet spot for mileage (18-20 mpg) which is 68-70 mph with 3.73 gears. Running 75-80 mph, gets 15-17 mpg.
 
Those MPGs sound good to me. I never got more than 14mpg out of a Cummins. Owned a '00, '01, '04, '07, and a '12. Not in that order but still never got the 18-20 mpg. The powerstroke we just sold got 14 mpg but the new one gets 20 mpg. Finally got there I guess.
 
I have gotten 21mpg with our 2018 Duramax, that was before the delete and empty. Last month when I was driving down to Illinois I got 12 pulling our 20' dovetail trailer with tandem duels. I don't remember what I got loaded going back; I was also pushing a pretty good wind going home. I think it dropped it down to about 9mpg going home. I have not driven without pulling anything to see if deleting the DEF system increased the mpg.
 

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