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2017 6.7 Lariat Crewcab. . I tested the hand calculated mileage against the truck calculations. Close. This is what the truck calculates. Highway, no towing, traveling an average of 65 MPH.
Using the trip meter above, I stopped to top off the tank with 14.18 gallons. Got this
21.76 MPG. Not bad at all. I might add that over half of this distance was hilly conditions.
I was getting about 16.5 before I learned about the advanced traction. Now, when I get in my truck, the first thing I do after cranking it is to push the traction control to deactivate it, then push and hold until the advanced traction control is deactivated. I would not have thought something so simple could make that much difference.
For those truly concerned about mileage driving an empty heavy duty truck, get a 50mpg prius.
There's like zero joy in that. People who drive Prius' have no soul. Besides, it's not a concern over fuel economy. It's more a testament to how good fuel economy can be in a four ton vehicle. Mine is mostly city driving and I've been averaging right at 14MPG, which is really remarkable.
There's like zero joy in that. People who drive Prius' have no soul. Besides, it's not a concern over fuel economy. It's more a testament to how good fuel economy can be in a four ton vehicle. Mine is mostly city driving and I've been averaging right at 14MPG, which is really remarkable.
Gonna have to agree with "C12", everything.........
There's like zero joy in that. People who drive Prius' have no soul. Besides, it's not a concern over fuel economy. It's more a testament to how good fuel economy can be in a four ton vehicle. Mine is mostly city driving and I've been averaging right at 14MPG, which is really remarkable.
Getting good fuel mileage is typically a soulless experience no matter what vehicle, thats why I'm surprised it is mentioned in about half of the threads.
I never understood the d-swing that was gas mileage. Harder to understand it when dealing with a heavy duty truck, but it is the Internet..
Can’t say before owning a diesel HD truck and certainly not after, have I ever felt the need to tweak or worry about any of it. Can’t say I’ve ever bought a vehicle because of the advertised numbers as well. Only numbers I paid attention too had $$ attached to them somewhere near the bottom.
that said in my situation I’d have to manage to do the math for tire size difference and adjust the miles and then the amounts. For what? To show I actually got 1.63 more miles to a gallon. I saved maybe a days drive over the course of a week or more.
FATC1TY, I’ve ner worried about mileage either. I have owned a 2000 Jeep TJ for over 15 years. I think it would be bragging if I said it was 12 mpg, but that’s also talking about a light, very small vehicle. I got it for fun, not for mileage. Same with my newer 250 6.9. I love it and since there were so many talking about super low or fairly decent mpg, I thought I’d see what the real numbers look like with mine.
And 99150, it’s ok to nitpick. This wasn’t a scientific experiment which is why I didn’t/don’t care about being exact. I kept it on 65 most of the time; lots of speed traps (I mean speed zones) along the way, with one stretch of 70 for about 30 miles. Figured it was fair enough to say average of 65 mph.
Last edited by rprice32; Dec 28, 2020 at 02:57 PM.
Reason: Spell checking.
To me mileage is icing on the cake. If my 350 SCLB 7.3 with 4.30's got 15 on a trip, it would be even a bigger smile then the one just driving it. Did I buy it for gas mileage, nope.... But getting what my grand Cherokee got and being 2500 lbs heavier with more then 2 times the horsepower....
Even tho I was giving you a little chit about “average” speed; what really shows things is the fuel mileage over several thousand miles, so that will be in town, on highway, doing the things we do normally on a day to day basis, include what towing we may do, etc. That is what we do with our trucks. Then we get a true picture of what our rigs are doing.
Like most here, I did not buy a 1 ton DRW for fuel mileage, but still like to just monitor how things are doing.
Rprice32, what made you think to try this to begin with?
Like you and most everyone else who owns an SD I didn't buy it for fuel economy. But increased fuel economy equals less $$, thats a good thing. I hear owners of the 20+ 6.7l routinely see mpg numbers around what you saw, but that is impressive for a 17-19. On a trip of around the same distance I might get 16-17 on the computer, although I find it to be 1 mpg higher than hand calculated. My highway trips are closer to 75 mph average.
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