Well, I've had my '09 Ram since the end of December and I haven't really driven it much. Other than picking it up (180 miles away driving at night without ever driving one) and a couple of trips to work, I hit 400 miles and my 1st tank of gas was gone. I was a little disappointed with only 14.5 mpg from mostly highway driving. We also had 2 huge snow storms, but why drive the new truck when I still have my 4runner the dealer didn't want for a trade-in.
My 1st fill up was 100% gas at 87 octane. I took it on a road trip from York, PA to Rochester, NY. With that gas on that trip I got 16.0 mpg.
I filled up for my trip home and used 89 octane with 10% ethanol. I got 17.8 mpg on my return trip home. I know my trip back was mostly downhill (south), but the gas had to have something to do with it. It was also about 10-15 degrees warmer.
After this trip, I'm much happier with approaching the 19 mpg on the sticker and will continue to look for mods to improve. I also suspect that the dealer gave me my initial fill up with 87 octane with ethanol. This would help explain some of the improvement. I plan to get 89 octane 100% gas on my next fill up to see if there's any more changes.
I also got to drive in the snowy weather in Rochester, and I am more than satisfied with the way the truck handled. I have the 3.92 w/ limited slip, and I also tried the "ESP" button, but I'm not to sure if it was better with or without.
It was great to finally drive my truck for real, and I have to say, this being my first ever brand new vehicle, my buyers remorse is gone.
Jim

 

glad you like it... cause your stuck with it until your wallet allows for a separation... hmmm sounds like that my father in law told me on my wedding day

 

You can't expect the full mileage from a brand new truck.

Because everything is brand new, everything is tight and the friction on all the internal engine components and driveline components is high.

After about 10-15K miles when the truck fully wears in, you're mileage will be much better than it is now (given your driving style stays the same). You should see a pretty big increase by just your first oil change.

 

im not far from you, i live in lancaster county....

i took mine on a trip up to buffalo,ny and back last month (big sabres fan) went to a game, did some stuff downtown as well. Drove about 1000 miles total on that trip, had about 2 1/2 feet of snow total throughout the trip and averaged about 17.8 mpg. I was very happy.

 

i took mine to vegas... and for the first time i hit 20 mpg on the readout, even with 24s.. never had that before i put on my mopar cai

 

I've gotten 23.6mpg before cruising on the highway at 70mph...

 

ive got 22.3 mpg highway cruising around 63mph...highest ive seen so far for myself

 

I averaged 18 going to El Paso and back last week,1300 miles. Back in august I averaged 20 going to Ft Benning,Ga and back, 2400 miles. Keep in mind since august, I've added dual exhaust and a torneau cover(that will increase your MPG)I drove 70 MPH each time. I figure with the winter gas and all, I'm gonna average about 22 MPG during the summer time.

 

You have a Mopar CAI? I see a different one in your pictures.
JIm

 

everything I have ever read states that the tonneau covers add no MPG