If all the folks out there could post the milage they seem to be getting in their megacabs I'd appreciate it. If you could include the following that would also be helpful:

1. hemi or cummins
2. is the milage hand calculated or taken from the overhead
3. is the truck still stock or does it have mods (list mods)
4. how many miles do you have on it

 

mine has been as low as 13mpg during the snow when i was having to let it warm up and thaw out to as high as 16.5. when i calculate it by hand it has usually been within a tenth of what the overhead says. mine is stock with 2200 miles so not really broke in yet. i have the 5.7 hemi.

 

Ctd
auto
short bed
cab level cap
4x4
17-18 mpg if keep my foot out of it (<80mph or 2000rpm )
off display checks real close to the couple of times i checked to fill up.
no mods
15,000 miles

tommu56

 

I have the06 megacab 4x4 with cummins with 11,000 miles. It is stock, but i do use the Drews Brew. It is called that by its creator. It is 8oz Marvel Mystery Oil, and 16ozpowerservice diesel. I will get hand calculated with keeping the RPM's under 2000 about 20-22 mpg. I am very happy with it, and plan to change exhaust, tires, cold air intake, and other various things.

 

Those are good numbers, I get barely over 16 (often under) in my 06 quad cab mds hemi.

How much $$ does the brew add per gallon?

 

07 mega 4x4 stock haven't seen over 11 mpg in the city per the overhead, 300 miles.. But I guess I didn't buy it for the great gas mileage!!

 

06 4x4 SLT Gasser

~480 per 35 gallon tank commuting 1/2 city // 1/2 country

Depending on terrain ~280-350 towing a 5k-6k travel trailer (wet).

 

I just purchased a new '06 Megacab 4x4 w/ 5.7 Hemi. My first tank of gas average just over 12 mpg w/ a lite foot. My dakota crew 4x4 w/ 4.7 didn't get much better mpg. Always looking for ideas that work to get more mpg.

 

Hemi
Overhead
Exhuast,CAI,Superchip
Best is 12.5, not good with a 36 gal tank

 

06 Mega Hemi 5.7 no mods
City (Washington, DC and Arlington, VA) 9.6 on the overhead
Highway (DC to Boston runs) 13@80mph overhead.