Or a bad ect, or o2, or....

 

i got my IAT all firgured out so now its not running rich so i hope with the plenum reapir and tune up i can see 13mpg that what i got when i bought my ram 3.5 years ago

 

2001 QCSB 318/auto 4x4 113500 miles 10 city and my last road trip was 550 miles and at 75mph i only got 12.5 mpg. To me it seems like this truck ought to do better than this.

 

3.9 with 135000 miles, with exhaust and im gettin 19 city and 23-25 freeway! Definantly lovin it! I feather the throttle around town to save my gas tho! Definantly helps to cruise!

 

Not with a magnum. These babies were built back in the day when gas crested at $1.08/gal in 98.

 

I know this is in the Ram section, but I figured I'd chime in with my dakota

96 dakota 3.9 5 speed. roughly 22-23 highway and 18-19 town (sold this one)
My 92 dakota 3.9 5 speed 4x4. 19 highway and 14-15 around town

 

2011 1500 Crew Cab Big Horn 5.7 and 3.21 gears. 18.6 mpg on freeway at 75 mph. That isn't great mileage, but it sure is comfortable. John

 

i agree with that. my last top up had me at 12.3mpg but it is a comfortable ride.

 

I have a 5.2L 4x4 CCSB Sport that gets on average 12.8 in the winter and 14 in the summer (my commute varies from season to season). The best I've seen (and it was only once) was 17.5 on a flat highway. The worst I've seen was 9.2 hauling a heavy load. In the long run I don't mind hiding my money in the fuel tank, I love drive my truck.

 

I get around 8 city, 14-17 highway, and like 10 interstate at 75-80mph