If your mopar is you daily driver!

I have been daily driving my old 78 power wagon for the last two weeks because of road conditions, It will get 15.5 mpg running in 2wd and keeping the speed below 55 mph.
I had to run it for a week with the 4wd locked in and the milage went down to 10 mpg.
The wifes 11 caliber gets about 30 mpg on average.
My 12 challenger averages 22 mpg if I can keep my foot out of it.
Our 03 Wrangler gets 17.5 tank after tank.