improving H3 mileage?
#1
improving H3 mileage?
I just recently bought a 2007 H3x and I love it. The vehicle had 13000 miles and was in perfect condition. I have did some looking around the site and reading up on threads. I'm sure this has been mentioned somewhere but I couldn't find exactly what I was looking for. I am getting ready to put 33x12.50/18 on the hummer and am looking for ways to improve my mileage a little bit.
I'm aware that I bought a brick on wheels, and do not expect 20 mpg, but a few extra miles would be nice. I am thinking about a cold air intake, and a throttle body spacer. Has anyone tried this combination? If so, what were the results? Any other options?
I'm aware that I bought a brick on wheels, and do not expect 20 mpg, but a few extra miles would be nice. I am thinking about a cold air intake, and a throttle body spacer. Has anyone tried this combination? If so, what were the results? Any other options?
#4
PCMtuneforless
i would go there and read their claims/disclaimers
if anything would give 3 mpg gain it would be worth appx $350 the first year if
i drive 12000 at 16mpg at 3 bucks a gal.
BUT pcm says "off road", void warr ??
id need some hard proof b4 i pass the loot!!
i think hard tires and a soft foot are primary,, and i only go so long with the soft foot!!
so i readjust my priorities, like i quit pepsi, about 100 bucks a month so i can put that in the tank. also about $30 cheese snacks. pack my lunch, appx $7-10 any day,,,that alone buys my gas for that day.
i got a double cheese and fries, the burger was worth 1.39 but the fries are NOT worth $2+ so i cut the fries.
may sound dumb but i like feeding my h3,,gas AND good oil changes
tom
if anything would give 3 mpg gain it would be worth appx $350 the first year if
i drive 12000 at 16mpg at 3 bucks a gal.
BUT pcm says "off road", void warr ??
id need some hard proof b4 i pass the loot!!
i think hard tires and a soft foot are primary,, and i only go so long with the soft foot!!
so i readjust my priorities, like i quit pepsi, about 100 bucks a month so i can put that in the tank. also about $30 cheese snacks. pack my lunch, appx $7-10 any day,,,that alone buys my gas for that day.
i got a double cheese and fries, the burger was worth 1.39 but the fries are NOT worth $2+ so i cut the fries.
may sound dumb but i like feeding my h3,,gas AND good oil changes
tom
#5
thanks for the input. Like I said, I know I bought a hummer and dont expect good mileage. But the cons of the beautiful vehicle more than make up for the bad mileage. I'm just hoping to squeeze out another 2-4mpg somewhere if possible and figured with the experience on here that about everything had been tried and tested.
#6
Slumlord, I've read up on the PCM and it seems like a good idea. It also seems like some people go with the jet module. Any tried or true benefits over the other with those two products? With the PCM would i need to have all my mods done before I got the product so that it could be a true tune to my specified mods? I'm a newb and I have no experience or idea with what is best for these vehicles.
#8
Keep your foot out of it! No matter what mods, you wont get DRASTIC changes, maybe a mile or 2 better. I would start with a better air filter and the AIR-DOC. (my next purchase) i run the Jet Module and i am taking advantage of the better, smoother acceleration so i doubt i'm saving gas.