Well my H2 is getting better gas mileage than my lifted Tahoe! So compairing it to that I'm Driving a Prius! plus I love driving a Hummer better than a Tahoe that moms everywhere have!

 

I have to give a compliment to K&n, i got 2+ mpg better with the full FIPK kit, new plugs, and a cleaned throttle body tonight. I was at 2.5 mpg better for quite a while in town, it went down to about 2.1 so far and will stay there now with highway speeds involved.

went from 9 to 11+, im pretty happy with that. Ill report my findings on actual gas usage when i fill up next, that is based off of the 6.2 going to 8.4 tonight with the digital, it is off though since it isnt calibrated.

tune is next, im hoping to get a bit more out of it then too.
steve

 

Exactly! I've NEVER known of ANY of them that did Anything! Except, I have a friend that has a diesel truck & I've got to say that thing will scream. Other than that, Nobody. jmo

 

im not sure how much the tuners help but it is nice to have adjust-ability of tire size and stuff. if you can gain a bit from a tuner then thats great too.

i bought mine for the tire size mainly, ill see if i can get a bit more mpg out of it with that. i gained about 1-1.5 with mixed wheeling and driving with just the intake install to go with the exhaust that my h2 already had. if i can get into the 10-11s consistently ill be happy. I got 9 wheeling it and driving slow for the past 50 miles or so. i get 10-11 on the highway with it now. that is great imo, thats 22% gain in mileage over what it was when i bought it. most cars would kill for an increase like that.

I was getting 9 hwy max with the wind pushing me going down hill with all of the windows open and me running along side. it was closer to 6-7 when wheeling a bit inbetween.

just another review of the k&n to help out a bit,
steve

steve

 

2003 H2 10.6 MPG Using regular. Around town.

 

2003 H2 152k miles I'm averaging at 12.6 MPG right now

 

2004 H2 88k miles 15mpg highway, 14mpg highway with roof box. 12-13mpg local. My wife drives civic hybrid which does 40-45mpg. So household average mpg maybe somewhere between 25-30mpg......

 

Bone stock 2003 w/ 90K miles I get 10.9 mpg. Zero highway miles, I drive 6 miles to work and 6.1 to church on a two laner.

 

I'm averaging about 8mpg in my 06... 6 inch fabtech lift & 40" tires... Thank God for company gas card!

 

my normal drive is a 2001 GMC sierra 1500 hd that gets 9.7 around town and if I'm lucky 12 on the highway so the H2's I'm looking at will be a huge improvement!