This seems cool....

[TurcoLoco]

One of the guys at the shop has a 2002 3/4 ton dodge 4x4. he averages about 22 mpg highway unloaded.

Hard to believe, not calling you a liar or anything but even the basic stock model of those trucks won't get better than 18/19mpg which is what I get with my truck on the freeway but still averages like 15/16mpg in the city.

So, I am having hard-time believing a 5yr old 3/4 ton 4x4 truck would get that...

I know by getting an enhanced air filtration system I can add another 2/3mpg but haven't seriously looked into it yet. I think it costs like $250-$300 but a worthy investment since I heard it -supposedly- increases car's power another 5 to 10 horsepowers. Getting a hard tonneau cover (snugtop $800) couple of years back, did improve the truck's aerodynamics which increased the mpg a little bit but more importantly it rides much smoother at higher speeds...