i have a ext cab long box , 4x4 , i get 400-700 depends what i am doing and where i am driving , town driving ( stepping on it to ) i get around 500

 

Depends on which truck I'm Driving.....
Diablo gets about 8 to 10 MGP's on cruise night, about 4 if I'm hanging my foot off in it.
Smooth....my all origional 1st Gen, gets about 18-19
Mary.... my daily driver, 91 D350 cab and chassis, duals, w/Western Hauler Flatbed, Toolboxes and welder aboard, stock except for cold air intake and 4" exh. 16cm. housing, 235-75r16's.....propane injection.....with propane off-20mpg, propane on- reg. driving, about 26-27, really light on the go pedal trying to get better mileage- 29/30 mpg. More if I got a good tail wind.....

 

About 1200km to a tank cruising. 900-100Km around town if I'm not stomping on the go pedal.

 

1200 ? , that is insane ! , how ?

 

I have my pump tuned in so well I can't get more then a tiny puff if I put my foot to the floor, 35's and 3:54's on the highway are awesome mileage wise. i literally go to my parents place 350km away drive around n come n home with just under a half a tank.