MPG - What are you getting (see title; only if you have this truck)

I'm getting 12mpg mix of city/highway probably 50/50 but this is also me trying to get the best mileage as possible (cruising when I can, driving the speed limit, etc)

Shouldn't I be getting better gas mileage?

Also, I have 75,000 miles and haven't really done much to the truck besides short ram intake and flowmaster muffler/dual exhaust. I should probably do a tune up soon(never had one), but the truck seems to be running great, idle is smooth and no noticeable problems.

anything else I should do at this mileage? maintenace-wise?

 

Im not sure if you saw this but its got some good facts about whos got what on their truck and what they are getting.
4.7s,and 5.7s




https://dodgeforum.com/forum/3rd-gen...u-getting.html

 

I looked through that for a while and didn't find much

 

Alright, And i know i have a Hemi but your getting about what everyone else is getting in the 4.7.

Can i suggest you try a Programmer?

 

I have 15K more on the clock on my 04, but mix between city and highway I can see an average of about 15-16 mpg

 

ah i forgot to add. I get a check engine code every once in a while (ever since I bought the truck) sometimes it will stay out for weeks/months then other times it will go out and come back the next day. the code says something about "purge flow" I believe... the mpgs have always been this way as well. avg 11-12mpg even with a good bit of highway driving.

 

Sounds like you need to check the lines coming off your vapor can next to the gas tank. What are the codes.