What he said !

 

Here is the OP, he is asking about highway MPG's. For those of you hung up on the truck "average" MPG mixed driving. That is not the discussion here. For highway driving, many here get 20 or more for their highway drives. Why is that so difficult to believe?, the truck is EPA rated for that.

 

Good point. I think the issue is the definition of "highway mileage". If you mean instantaneous or at that moment then yes it is possible. If you mean fill up with fuel go immediately to smooth level no stop and go traffic driving until you fill up again it is a long shot but still possible. If you mean real world where you fill up and drive to the Restaraunt for something to eat, then start out in traffic for a couple of miles on the way to the highway, then again drive a mile or two to a service station in traffic again, then I have to say no it isn't possible at all. I have had 3 HEMI Rams and many other Dodge trucks and as I said earlier the best I ever managed was just over 18.7 MPG and that was scenario 2 with an empty
04 QC 4X2 running 60-65 MPH. Just my thoughts.

 

Thank you for making a sensible post. Like I said before, the only way to AVERAGE 20-25 mpg in a hemi truck is coast it down a hill and have someone pull it up the other side and repeat

 

Pedro....average mpg is the ONLY figure that matters because those figures are accurate for everyday driving, not just driving under perfect conditions. If you and Hemi Rom want to believe that you are getting that good of average mileage....u might be foolin yourselves, but not me...peace

 

I never said that I average 20 MPG for everyday driving. I will average 20 and over MPG over hundreds of miles when I drive to my cabin. I don't appreciate your comments about fooling myself, it reflects more on you.

You conveniently disregard the OP original question, then call those of us that average 20 or more MPGs on the highway liars for your self edification. This is a typical approach of haters, tear everyone else down to make yourself look better.

 

I'm not THE old man with a HEMI but I am AN old man with a HEMI and personally I've never understood what good the EPA numbers are. The auto mfg take a vehicle, go over it with a fine toothed comb to be sure it is perfect with maximum air pressure in the tires, no extra weight etc., then run it on a closed course with no lights or a/c to show that this full sized truck is getting more than 20 MPG. Then when someone buys one and puts a couple hundred pounds of tools, personal gear and stereo equipment in it running a/c with the stereo and lights on gets only 15-18 MPG they think they got ripped off. That is why us "old men" talk in real world numbers not in ideal conditions. No offense to anyone just looking at things in different ways.

 

Kind of lost track of everything that might have been said in this thread, but will comment that the 3.92's are probably not much worse (if at all) than the higher ratios unless you go above 70mph or so.
I've always like that little bit of extra acceleration you get with them and have found mileage to be fine.

 

I'm running 33's and 3:55's. I know why I'm getting 12mpg avg highway. Lol.
Mud tires. Heavy foot. 70-75MPH. No cat. Tune up.... idk when. 318.

 

how old do I have to be to join the "old men with hemis" club? Just go over to the non technical discussion and look at the real world stories on the MPG stickie. Lots of folks reporting on long trips getting great gas milage. I know I do.