20mpg might very well be possible. When my father brought his 01 Vette down to FL from MD, he was getting 32mpg! That was all highway, probably 65mph, cruise control. But he usually gets 25-26mpg crusing around town. Anyway, it is possible to get better than listed economy, somehow.

 

[&:] Hi All new to the forum, but anyway, if your getting 20mpg, run with it, i jave an 03 with the 5.7, and if i get 15mpg i'm lucky.

 

Hello Ramsport, welcome, I have got at the most so far 20.4 after having the Aero Turbine installed.

 

Put yourself in the shoes of a Dodge marketing executive. If over 20 mpg were possible wouldn't you be advertising that everywhere? A recent article in consumer reports was saying that the mpg listed on stickers is inflated on most vehicles. Maybe you guys live where it is perfectly flat, always have a tailwind and your home and workplace are on a highway.

Nothing is free in life, if it seems too good to be true it probably is, you cannot create energy only transfer it....

Just trying to be realistic here, we drive large, overpowered trucks.

 

It may be possible but it's not consistant enough to advertise the fact.
Best I've gotten so far in mine was 18.6 driving at 72 mph from Daytona to Tampa with a light load. Going 5-8 mph slower might have yielded another 1-2 mpg.
Around town, in stop and go, I see low 13's.
...glad I still have a motorcycle.

 

Yesterday, "I live in the mountains in Utah" I did a 104 mile round trip to go down to the city and have my new Aero Turbine installed. Going there about 20 miles is downhill and coming back just the reverse. I filled up before I left and filled up right when I got back. At 104 miles the truck used 5.1 gallons of gas, it was about 20.4MPG. I admit the downhill helped, but after having my new muffler installed, I got into the pedal pretty good coming back up the hill. Keep in mind that when I pulled into my garage I had a total of 570 miles total on my truck, after it is broken in it should do even better. I know I wont get this kind of MPG always, but it is possible. Also the new Aero turbine could have helped out with the MPG as well.

 

Well, I'm about to turn 18K miles on my truck and the MPG has seemed to level out. It increased in MPG to about 15K miles. I guess everything is finally getting nice and broke in. I've had a best of 19.x with my truck at 65mph and using paper and pencil. Overhead said 22.x My usual average is 17-18 on the hwy depending on speed and conditions. 20mpg is plausible and I won't discount it, but 20mpg is not common. Now that I am not in south florida my average mpg has crept up to around 15mpg or so and I'm happy with that.

 

I sell these trucks and i have to tell you, I have several guys swearing they are getting 20 mpg with quad cab, 4x4, MDS, 20" wheels (mind you the 20's also have 3.92 axle). Window sticker says 18 hwy., fine print says "mileage ratings ranging from 09 to 24 mpg city and 11 to 29 mpg highway". This is a national average and Dodge will state conservatively to cover there ***. Believe the previous posters. These trucks are the best they have ever been.