Combined average of around 16.5 MPG. Best Hwy is 20.1. Don't believe the overhead.

 

Well I must be going crazy. Actually took mine on a road trip (500-600 miles) and was around 16 there - and 14 back. Right around 67mph is a sweet spot.

 

I've got about 12000 miles on my 2004 RAM 2500 Hemi/4.10 QC SB. Just over 1/2 of it is towing a 6000 lb trailer.
Towing mileage was 10.7 mpg
Non towing is a bit over 12 mpg but improving.
Best so far was 15.7 round trip - upstate NY to Newark, DE.
My overhead 'puter reads from 0.5 to 1.0 mpg higher than actual.
I'm sure the extra 1000+ lbs AND the 4.10's have a major impact on my mileage, but overall, I'm not disappointed.

SilverGhost

 

04 quad cab with hemi (custom exhaust) im gettin about 13
03 quad cab 4.7 gettin about 13

 

The sticker gas mileage for the 4.7 and the 5.7 Hemi only have a one digit difference on the mileage estimate and it's 18 for the Hemi Highway and 19 for the 4.7.

The reason I didn't go for the Hemi was the manual requires you to use 89 octane gas vice 87. Even if the Hemi and the 4.7 got exact mileage, your gas costs more for the Hemi.

My brother has an 04 Hemi and we both get around 13. His has a complete dual Flowmaster exhaust system as well. He tends to put his foot more into his Hemi than I do in my 4.7.

 

[Deleted by Admins]

 

CANADIAN AM I? OH WAITA MINIT I AM TOO. THE GAS MY MANUAL SAYS TO USE IS GOOD OLD ALBERTA 87 OCTANE AND YEAH THATS AN HONEST 19-21 MPG. MIND YOU A REG CAB SHORTBOX WEIGHS LESS THAN A QUAD CAB OR QUAD 4X. SO, GOOD LUCK WITH THAT AND YA ITSA HEMI HEMI HEMI HEMI!!!!!

 

Well, I bought a 2004 Hemi Quad-Cab last night with 3.92 & 20" wheels. I reset the overhead computer at the dealership, drove home which was about 40 miles, all freeway at 65-70 on 285/75 and the overhead said 19.9 when I got off the freeway. I'm going to Ocala this weekend and will check it both ways to see what happens.

 

i have a 2004 dodge hemi, and i was gettin about 14 mpg and i just put in a cold air intake system and now its climbed up to about 14.5 and ive only had it for a few weeks!!

 

[Deleted by Admins]