do u ahve all wheel drive?? the vin is missing one number b4 the R if u have aAWD then u will get lower MPG plus do u drive with it in defrost or with the AC on??? that makes a difference plus how u drive does the same.

 

Sorry about that...the last numbers are 76R612887.
It is definitely AWD.
It has been very cold herenear Pittsburgh thiswinter. But we don't let it warm up too much and we do drive with the defrost on at times, but not continuously.
Even on the road, we didn't get better that 15MPG.
The local Chysler dealer was nice enough to put in a new air filter, but it did nothing to improve the mileage.
We tried using 89 Octane, but it made no difference, too.
We'll try anything...
Thank you.

 

oh i forgot to ask one question how are u getting the MPG ??? are u doing the math or are u using the trip computer in the car?
if u are using the one in the car that is an avg for the whole time u have had that thing running and never reset the trip computer. Look in the owners manual and reset the trip time to 0 then get a reading. If u are doing the math yourself then I would haft to say its your driving habbits and area u drive in.
I see u have had the recall done where the PCM it now at the latest software so thats where it needs to be. Other than that there are no other improvements that can be done plus u know u have the 3.5L engine the 3.8 gets a bit better.

 

I reset the computer all of the time.
Thank you for your assistance.