Mileage

[Camou2]

We all own a Hummer because we love the truck and not because it gets good gas mileage! If you only put about 7,500 miles a year on your truck it would take about 5+ years to recover an investment of $2,000 today if you could achieve a 3 mpg improvement.

The best improvements in mpg will be achieved by how we maintain and drive the truck: don't load it up with excess baggage and weight, use cruise control on open roads, accelerate at a reasonable rate, coast to stops instead of braking, check tire inflation often, don't run oversized tires, change oil, air filter, etc. often.

Probably the only aftermarket item that will improve mpg is a cold air intake. Not sure how much but maybe there are test that have been done that you can Google.

[guruerror]

Nothing really helps as significantly as 'how' you drive it. The first thing I did was put a CAI on mine...it might have gotten me .2 or .3 more, but that's about it. I was more impressed with the way it subtly changed the sound and the slight increase in pick-up...but those two things tend to make you get into the pedal even more...so your mileage will actually suffer.

I was on a mission to get 14-15 mpg years ago when I first bought the truck, but then I realized that it just wasn't going to happen. Now I simply don't care...the truck's awesome...it is what it is.

I keep hoping that the 'huggers' will eventually develop a way to run a combustion engine on some alternate fuel (besides flex); like dog farts. Man, I'd be a happy camper then 'cause my pup's got some bad gas...then and all the great, American SUVs would come back.

[Luv2Camp]

I am getting 11 miles on average. With the stock set up intake I was getting just over 10. I had a CAI on the truck when I bought it and did not like having to oil the filter and likes the stock set up so I converted to stock and had an immediate drop in MPG from 11 to 10. I noticed that on the CAI system, the mass air flow sensor did not have the mesh screen on it. I removed the mesh screen on the stock one and the MPG went back up to 11. I remember doing this same thing on my Corvette years ago as the mesh screen really cuts down the air flow. It does leave the sensor wire exposed but as long as you have an air filter, there should not be any debris getting in there to begin with.

[tyler1bo]

What gas are you guys currently running?

[guruerror]

93 Sunoco as much as possible...it's my favorite.

[Luv2Camp]

87. Also use 87 when towing my 3500 lb trailer and zero knock or ping...