Ideas 4 better fuel Mileage?

[nic2fast]

My brother has an 02 250 4x4 extended cab on 35's and his fuel mileage is about 14 at the best. he has a dp turner installed and tried all settings and babied it, 14 is all she wrote. what is some more adders he can put on or change what he has to get better mpg. he also has 5" turbo back exhaust

[tsteel]

Intake and gears!

[NotStock]

Cheapest would be propane, depending on the programer type he might even be able to have a propane specific economy tune.

[tsteel]

Originally Posted by NotStock

Cheapest would be propane, depending on the programer type he might even be able to have a propane specific economy tune.

I forgot about this but that works wonders for some

[nic2fast]

by the time u buy the propane is it really cheaper? how often do u have to get the tank refilled

[NotStock]

Originally Posted by nic2fast

by the time u buy the propane is it really cheaper? how often do u have to get the tank refilled

Depends on how the person is using it. Some use it in small quantites to improve low rpm fuel economy as the propane creates a more complete burn. In this instance, yes you will spend some on the propane but you will save money overall. Others inject larger amounts as a power adder. In this case, yes your fuel economy will go up but you will end up spending more overall.....

[nic2fast]

thanks for the advise everyone. one more thing though, is there anyone out there getting 18 or better on their 7.3 I recommended the 250 extended cab to my brother because i thought it being lighter would get better mileage than my 350 crewcab dually, but he actually gets worse than i do. Is it possible to get better than 18mpg on diesel only? Has anyone had luck getting good mileage on a DP Tuner chip, could that be his problem?

[elrojo63]

my stock 97 250 regular cab can pull 18-20 on the highway

[mrnecsteve]

Originally Posted by nic2fast

My brother has an 02 250 4x4 extended cab on 35's and his fuel mileage is about 14 at the best. he has a dp turner installed and tried all settings and babied it, 14 is all she wrote. what is some more adders he can put on or change what he has to get better mpg. he also has 5" turbo back exhaust

hey this is an easy one:
1 Remove the 35's
2 Unlift it,
3 go back to an airodynamically smooth wheel
4 tuck the tires back into the fender by removing the offset on the wheels
5 use a smaller tread tire

please post a picture so i can see if my guesses are correct.

[SS4Matt]

the most i ever get by calculating it myself is 12-14. a friend of mine with an 02 F350 says he gets 18-19 mixed, i just have to call his BS because i'm not seeing it when his truck is all stock with just a predator tuner, and a slipping trans. and i have an intake/exhaust billet torque converter that has a lower stall and a wildman chip. although i never drive highway, just city with some mix for me. the one time i did drive all the way up north and back i got 21 mpg. one of my bosses 6.0 F350 only gets 14mpg as well