Mine shows the same average since I bought it. 15-16 mpg. It is a 2wd Hemi Regular Cab, 3.92, 20" wheels with7500 miles on it.The4.7 truck I had with the same exact setup got the same mpg.

 

If you want better gas millage. buy a Civic...

 

Mobile 1 will help alittle also. I've noticed about 1mpg over conventional oil

 

It is worth noting
that the new 2009 Ram
has 72 pages of modifications
http://www.turbodieselregister.com/2...99f4f195368022
about how the MPG has been slightly increased
...and yet it does not have an aftermarket style cold air intake!

Gosh, those Chrysler guys must be fools !
NOT

But they did improve the aerodynamics of the Ram body with tweaks
increased the compression ratio of the pistons
and even tightened the gaps around the headlights and fog lights.

These types of 'real MPG improving' mods
which are also heavily used in the
GMT900 pickups designed by ex-Chrysler VP Bob Lutz,
and in the Toyota Tundra
are discussed in this long read:

https://dodgeforum.com/m_447500/tm.htm

 

HankL he wasnt asking what did Chrysler do to improve the mpg of the 2009 Dodge P/U he asked what he could do to improve the mpg in his truck nor did he ask for your opinion on CAI - but thanks for showing up

 

use cruise control whenever possible and once again..the winter mix is bad and let it break in a little more. the mods will help also. and make sure your tire pressure is right on.

 

I am shocked you get 12, I have a 08 QC4.7L and getanywhere from 11.6 to 14.1, I am really mad at myself for not getting the HEMI. But i wanted the possibility to put ethanol in the tank. I paid $2.58 a gallon the other day and was able to fill the truck up for $49.18. My 06 Hemi i never filled up for that cheap. So i guess it's all relative.