Mileage

[Chubosco]

Originally Posted by chadley

Im about 1/2 way thru a tank on my 07 and currently averaging 15.4mpg.(yes its a H2) Ofcourse that is driving like an old lady with a painful blister on her right foot!
I also live in the mountains at about 7500 feet, would high altitude give you better mpg?

The thinner the air, the less milage I would think.

My catback system has been on for a few months now. I went from 11.7 to 13.2.

After reading replies from this post, I am going to remove the screen from the air filter and hopefully jump up another 1 mpg.

At 14.2 I will be a little happier and if I would quit driving 70+ on the freeway, I could even go slightly higher.

[SmokeyJoe]

I was getting on average 10.8, driving fairly hard with a mix of city/highway. I have done a few mods and drive a little easier (not much) and I am now getting 14.2. But mostly I am getting 13.4 after the mods and driving the same as before. If I am on the highway and set the cruze and reset, I can get up to 16 if I go 55-60.

Mods - CAI, Exhaust, programmer (performance tune), better plugs and wires and electric fans