I just picked up a 98 Dodge 2500 with a 24 valve. I think I got a great deal on it. It only has 83,000 miles and looks great. "old man" had it hauling a camper. I am getting about 16 to 17 mpg out of it. I drive a lot and would like to improve mileage without getting to involved with extreme mods and such. I was hoping a simple 'chip" or "programmer" would help. Power is not a concern (YET)but a bonus. This truck has all the ***** I really need.

Question #1 How do I tell if I have a 98 or a 98.5?

#2 Can I get 20 to 22 mpg from this power puck? DiabloSport D7153 - DiabloSport Power Pucks - Overview - SummitRacing.com ?

#3 Any recommendations to get my mileage up a little?

Thanks for any help. I really do love this truck the best dodge I have owned. This makes the fourth.

AL

 

Look at the engine, drivers side, for the injection pump. If it is long and has 6 tubes coming straight up, its a 98. If is is a smaller pump with 6 lines sticking out towards the rear in a circle, 98.5.

Maybe, advertised HP and MPG gain vary drastically between vehicles.

Lift pump, exhaust, air filter, and a good programmer.

 

simple answer is 98 is a 12 valve 98.5 is a 24 valve if it is one hundred percent stock the first thing i recomend is a quality lift pump if your not looking for hige power both of the direct replacement pmps from FASS and Air Dogs raptor diect replacement are gppd pumps I prefer the Raptor because you can run it with a chip or programmer. The biggest reason is to make sure you have a good supply of fuel to protect your VP44

 

I did notice that when i put my airdog on my truck my mileage went up a little maybe 1-2mpg, i also had great luck with the edge EZ.

 

you could have a 98.5 12 valve or 24 valve how you tell if you have a qaud cab is 98.5 have doors that open and 98 does not. most important thing is knowing what engine you have before modding it

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in a reg cab its about the dash and cup holders ones above radio 98 cup holders below that swing dwn 98.5

 

First thing to do is a lift pump regardless. then the next step is listen to RAWilliams. He is the nicest person and seems to have the most knowledge on this site!

Thanks RAWilliams for all your help!!!