[size=2]I know I have seen this subject a while back but cant find it. I just bought an 05 1500 w/ the hemi and 20" wheels. My gas mileage is 10.5 per gal. at best, half city, half highway. Is it worse during the break in period? I only have 400 miles on the thing and I have been extremely light footed 99% of the time. Dont want to break anything. Does the superchips programmer actually make the truck more efficient when you tweak the computer a bit? Exhaust and airkit didnt do a thing for my 02 with a 4.7. Didnt make a programmer at the time for it.

 

Nevermind I found my answer a few posts ago for the 04. Probably no different.

 

I just bought one myself so I'm kind of curious about what to expect. The computer states that I am averaging around 14.2 miles per gallon in city driving. We shall see!

 

my dads new hemi club cab is running at 12 mpg average. iam sure that its all due to the break in period. once you get past that, it should bump up a tad. but who buys a hemi for gas mileage right?

 

Well, if I'm gonna have poor gas mileage with either motor anyway, I'd rather have it with the Hemi.

 

My 03 ran at 10mpg up til 10k, now at 31k and it's doing 15.2mpg, Volant CAI Gibson headers & exhaust with 20's

 

our trucks computer on the overhead console shows anywhere from 12.5 to 17.2..don't know how accurate that is- only 250 on the odometer.

 

I have an 05 as well and my MGP went up a bunch after the break it (4000) I was getting betwen 11-13 around town, but I have moved up to around 15 in town and a wopping 18 on the highway. Hope this helps.

Skip
SkipNutz@gmail.com

 

Thanks guys. I only have just over 3000 mi at this point. Just did the oil change. We'll see.

 

Well I ve heard most dont trust their trip computers but mine has been accurate give or take half a point. It was sittin low when I first got it and now I m sittin at 10500Kms and running Mobil 1 and its a steady 16.5mpg (for me its around 15Ltr/100kms basically around 650 - 700kms a tank)

Now granted I dont drive it hard (about 5 over the speed limit) and there have only been a few occasions where I ve felt like layin a few strips of rubber which its done with ease but I guess I m kind of a light foot on it. I m not really in a hurry to empty out a tank of fuel with it costin me about 100 bucks to fill it up.