Before you tell me to search and say there are a bunch of fuel economy threads already, I know. But here is my question and I think it is a little different.

How do you HEMI guys that claim to get 17+ MPG actually get that good of mileage. I mean I understand that if you are really gentle with the go pedal that it is possible, but I hust have too much fun getting on the throttle and hearing that HEMI. Does this wear off over time or what, because it is just soooooo much fun not getting good mileage and feeling the power.

So how do you do it?

 

What you said + MDS helps...

I get 18 give or take highway at 68 MPH on an 05 no MDS and 4x4...

Just accelerate gradually...don't get stupid running light to light

Wheels/tires can make a difference..

Proper Alignment

Regular maintenance (Oil/Plugs/Wires/ALL filters)

Programmer can be huge...

 

i got a 4.7...i have simple bolt on mods right now i run 93 octane w/91 performance tune (superchips def helps) intake and exhaust(no gas saving from these) and ill tell ya its hard keeping it at 15mpg and thats what im avg right now ...on the highway this past weekend i was doing like 18-19mpg at 75mph...."overhead" cant gaurantee thats what i was getting but i hit the ol reset button and thats what was read.....

 

thats the problem lol....i cant remember the last time i was doing 68 on the highway

 

I got an '05 hemi and get 19-20 highway, i usually have the air off though and cruise control on, city im only gettin about 12, i find it hard to keep my foot off the pedal too, i didnt buy a hemi to drive it like a 4.7 (no offense to 4.7's!!)

 

oh and thats at 75mph on the highway btw

 

04 Hemi, averaged 15.5 mixed

 

12 in town for me (+/-).

The only way I have seen get better overall is to keep the RPMs below 2000

 

you from trenton fl? do you know a stephen balkcom lol

 

That is my thoughts, I bought the HEMI to use the power. I am getting a little over 12 now and I have winter tires on it (Hankook I*Pike) so I don't think they are helping the MPG. I also have not went on any road trips yet either, I have only had the truck for a little over a month.

I just cannot figure out how some people report 17+ (unless it is highway) and still enjoy the power that the HEMI has to offer.

Anyway, enough typing for now, I'm going to play in the snow.