Hummer H2 - How Can I Get Better MPG & Reduce Emissions?

[zpiloto]

Originally Posted by HummerH2

OK, Here is the tire info:
TT I Guard 3 Ply Side Wall
All Terrain T/A Radial LT 215/70
50 psi

Now for what we have all been waiting:

City:
Before joining this forum I was getting 10.1 mpg
After going through the tips with my wife we started getting 13.1 mpg
After increasing the tire pressure (pressure was 40 psi from dealer) I increased it to 45 psi the mpg went to 15.2 mpg. This is 50.5% increase in gas milage in just 2 days. My wife still has to learn more how to drive using all your tips but this can give us an idea of how much it can improve.

I have not tried Highway mpg as I live in a small town and cannot take highway to go to work. I will try mpg in Highway during weekend.

This brings me to a good point and that is, although a Hummer H2 cannot achieve 82 mpg, we can help other H2 drivers to join the forum and learn the tips so they can improve their gas milage. Hummers will not go away so why not improve gas milage on as many H2's as we can.

Any thoughts?

Nice job. I think you can still squeeze a few more MPG out of her. Do a search and look into a grill block. Cheap, easy and will help with the warm up times which translate in to better FE. How are you calculating the FE? Go ahead and put the beast in the garage with pics and a gaslog so you can track your progress.