Miles per gallon 6.7 city/highway??
- Thread starter toddy204
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ramhunter9
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Here is a good read ....
From what it looks the 5.9 has better power .
6.7L Vs. 5.9L Cummins Diesel Engines - Dodge Trucks - Diesel Power Magazine
From what it looks the 5.9 has better power .
6.7L Vs. 5.9L Cummins Diesel Engines - Dodge Trucks - Diesel Power Magazine
Stangshcky12
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If you put $1500 into either the 6.7 is a better motor IMO
1stsgtcrb
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mileage
I'm getting between 18-20 on my 40 mile commute to work, 20-22 on long highway trips.
I'm getting between 18-20 on my 40 mile commute to work, 20-22 on long highway trips.
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This all depends on what you want to do with the truck. Having owned both an 07 5.9 and now a 2010 6.7, I prefer the 5.9. If you plan to add much power, the transmission is going to be a concern for both. The transmission behind the 5.9 is much cheaper and easier to build than the 68RFE that is behind the 6.7. Also, aftermarket support for the 5.9 is much better as well.
EFI live is available for the 07-09 6.7's though, so that is a big plus over what us 4th gen guys have to work with.
Mileage wise, I was getting about 15mpg on 35's with the stock 5.9. Then it bumped up to 17-18mpg in my with 35" tires after adding a tuner, 64mm turbo, and 90hp nozzles, and all the other basic boltons. I bought this truck lifted, so I dont know what the mileage would have been like on stock tires.
On my 6.7, I was getting 17mpg stock with stock tires. Then added a programmer and deleted the dpf and was getting 20-21mpg on stock tires. Then I added the lift and 35's and my mileage has dropped to about 17mpg again on the highway.
If you are just looking for a great all around truck that will not get alot of performance mods, then the 6.7 is perfectly fine. If you plan to add anymore than about 100-150hp to the motor, then the 5.9 gets my vote.
EFI live is available for the 07-09 6.7's though, so that is a big plus over what us 4th gen guys have to work with.
Mileage wise, I was getting about 15mpg on 35's with the stock 5.9. Then it bumped up to 17-18mpg in my with 35" tires after adding a tuner, 64mm turbo, and 90hp nozzles, and all the other basic boltons. I bought this truck lifted, so I dont know what the mileage would have been like on stock tires.
On my 6.7, I was getting 17mpg stock with stock tires. Then added a programmer and deleted the dpf and was getting 20-21mpg on stock tires. Then I added the lift and 35's and my mileage has dropped to about 17mpg again on the highway.
If you are just looking for a great all around truck that will not get alot of performance mods, then the 6.7 is perfectly fine. If you plan to add anymore than about 100-150hp to the motor, then the 5.9 gets my vote.
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Stangshcky12
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Don't think its ever been reset but my girlfriends dads 09 is averaging 23.5 mpg according to the overhead
infernoredram
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I've always read a deleted 6.7 is nothing but a big 5.9. I'll have to agree with hemi450, moderately stock, 6.7, going for power, the true and proven 5.9. It just has sooo much aftermarket support
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