I've got a 98 ram 1500 with a 360. The engine is bone stock (other than a junk cold air intake put in by the previous owner) and the truck has a 6" lift on 35s. Its my daily driver but im only getting around 6-9mpg in town. Is there any mods i can do to increase the gas mileage of it?

P.S.- please no "if you want gas mileage buy a prius" comments. I love my truck and i will drive it no matter how bad the mileage is, but i will still do whatever i can to get the best mileage possible out of it, thats just common sense.

 

Tune and 4.56 gears.

 

Drive it gently. No rabbit take offs. No racing to get around people. Basically, drive like a grandma, like I do. But having large wheels and tires on a 4wd is going to seriously hurt your mileage no matter how you drive. Secondly, that 360 is good and drinking gas and not much else. A 318 doesn't give up much power to the 360 and you can hypermile a 318 and get a huge boost in mileage. A 360 really doesn't seem to care too much how you drive-it's going to chug fuel like a wino.

 

This.

Unfortunately, you are looking at over 2 grand for just these two items, and it will only bump fuel mileage by a few points. It would take a VERY long time for the benefits to pay for themselves......