My 05 DODGE Ram 2500 4x4 gives me 24 around town and more on the hwy! I guess y'all know it's a Diesel right? capybill

 

On my 97 Ram 4x4 360, I am seeing about 16mpg on the highway, and in the city about 11-12mph after my plenum fix, new cap,rotor,plugs & wires and no air cleaner (till I mod my cold air intake on lol). My sisters 2000 Ram with a 360 does 20mpg, seems you can go forever with that truck! and shes not nice to it either!, I thought she was full of $hit getting that kind of mileage till I took it on a 100 mile round trip to pick something up and I only put in like $15 to top it back off.

My buddies 04 Hemi truck consistently would do 14mpg at 55-60mph. Though when I drove that I was always into the gas pedal.

 

With a 01 QC 4x4 5.9 w/ 35s and a lift I'm getting 12 mixed driving.

 

with 3.55s and 33s i get about 15 highway and 13-14 mixed unless i wanna be herd

 

with my tranny not having overdrive i get about, 9 average =[

 

14-15 mpg give or take with 80/20 highway, city driving.

 

100% city driving most I have gotten is a whopping 8.8mpg. I think it should be much better but thats been constant the last 3-4 tanks.

 

Fixed your plenum yet? How old are the O2s? Cat??

 

i don't think a plenum gasket or o2 sensor would help if he is doing 100% city driving with a 4x4 truck. i know any of my trucks drop to about 9 or 10mpg if i do all city driving and i got 5.2L's.

 

I can get around 12 in town, even with my 3/4 ton....