2004 Dodge Ram Fuel Milage?

MANQ2K1

MEMBER
2004 DODGE RAM
V8
4WD
AUTOMATIC
39,550 MILES

I have a 04 Dodge ram hemi. I installed a new exhaust, Bully dog power pup computer programmer, shorty headers, CAI, and aftermarket spark plugs. All of these upgrades are suppose to improve the MPG's right. I am only getting 11.6mpg on the highway, well that atleast what my onboard computer says. Is there anything that could be causing my truck to get such low mpg's?

2 Replies

SERVICE WRITER

MECHANIC
9,123 POSTS

I'm not sure of what the claims of those that recommended those upgrades, so I really can't comment on that other than that "increasing fuel miliage is a hot button that marketers are using.

What plugs did you use? Hopefully not bosch. Are they gapped right? Are they the iridium?

You'll find great info on this page:
https://www.2carpros.com/forum/gas-mileage-tips-vf650.html

You need to mathimatically figure out you mileage instead of assuming the readings are correct.

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Sunday, August 31st, 2008 AT 7:07 PM

SANDMAN799

MEMBER
5 POSTS

I have a similar problem with my Ram pickup. I get lousy gas mileage, in part it is because there is a leak somewhere in my evaporative fuel system so instead of recycling the gas vapors they just evaporate and it in effect is just letting the gas in my tank evaporate, I am still trying to find the leak with no success, and with it taking over $100.00 to fill a tank that used to take $40.00 to $50.00 I am just letting money evaporate. Which also causes crappy fuel mileage since the system isnt doing what it is suppossed to do. So if anyone knows where I would most likely find the problem at I would greately appreciate it

Bill

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Wednesday, September 10th, 2008 AT 3:02 PM