Wow, that's great mileage. How many miles are on your car? Did your MPG get better over time once your vehicle got more miles on it?

 

mines actually stayed about the same. Its got 11,000 miles and I now use Castrol Synthetic oil.

 

Averaging around 18mpg with our R/T. Mixed Highway and city.

 

Well after 26k and using Ams oil and filter and new tires . I am getting 21 with mixed conditions. I love the car so as long as it stays close to this i am fine with it.

 

Now that it's colder out, I'm struggling to get 18mpg and that's 90% highway. MPG gets worse with colder temps, right? Or is it the other way around?

 

I average around 20MPG for my RWD RT, gotten as high as 26MPG on a long 250+ mile trip before, yours will be worse though since it's an AWD as AWD systems have worse fuel economy, the AWD RT is 17/23 vs the RWD's 17/25, only 20 miles is to short to get any sort of reliable mesurment anyways.

 

20 miles is too short for an average, but running 20 miles at a steady speed on the highway should tell me what the "best" mileage I should get is.

 

Set it on cruise at 70 and see what you get. you should get about 24. I have awd and like i said i get 21 and not on cruise. I just came back from Dc and got 23.5 with wify in the car at 70mph.

 

http://tralfaz.net/snowmag/Snowmag.mov

Got Snowmag to Mammoth and stomped it and let the computers keep it under control - too fun - TTL

 

I have an 05' RT AWD, had her for 9 months and just passed 28,000 mi. on my Hemi "you do the math"
Stop and go you'll be lucky, very lucky to see 19mpg, than again i have a very heavy foot and only get 16.