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RE: H3 actual gas mileage
ORIGINAL: Dennis I understand that..you want to be armed.. Just tell them your mileage sux, and you have a feeling you are not tuned properly..My dealer said to bring it in and they'll throw it on their diagnostic machine and look over all the operating settings, to make sure nothing is out of bounds...If they give you any push back..Tell them the mileage you're getting is like that of an H2..it ain't normal! thanks, I will try... [sm=smiley20.gif] |
RE: H3 actual gas mileage
I will do it too. I took it in at 500 miles and they sent me away.
Thx Dennis |
RE: H3 actual gas mileage
Only getting 13.5mpg driving conservetivly. Thought it would do better. Hopefully the intake and exhaust will help.
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RE: H3 actual gas mileage
i didn't vote, 'cuz that would screw up the curve. one thing to note though, bigger tires on a stock computer are going to throw off both the odometer and speedometer, thereby hosing the mileage on the computer. the H3 doesn't have a programmer available yet to update for the larger tires, and GM can't/won't do it for you. i noticed a drop from 11.5 to 8 when i went from the stock 35" to 37" tires, but once i reprogrammed the computer, i'm back to 11.5 again. your wheel travels further with each revolution now, so when you've gone a mile, your computer thinks you've gone less than a mile. but, you've used the same amount of gas as a mile travelled on your old, smaller tires. the only way to compare mileage from stock tires to larger tires would be to drive between 2 set points on a tank of gas, fill your tank, drive it again, refill and see if the amount is the same. or, you could harass the programmer manufacturers into getting off their lazy a$$es and making a programmer for the H3.
my mileage should be getting better though, i took out my 20lb air filter today. the filter weighs about a pound, the dirt and gravel that was in it was an additional 19. i don't know if the H3 offers an "instant mileage" display or not, but once you see 2 MPG, you stop looking at it . . . .[sm=boosign.gif] |
RE: H3 actual gas mileage
I am averaging about 17 mpg and its about 60 /40 city/highway
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RE: H3 actual gas mileage
i don't know if the H3 offers an "instant mileage" display or not Mine has been pretty steady at ~15mpg. But I didn't buy a Hummer for the gas mileage. |
RE: H3 actual gas mileage
ok, I just talked to someone at my dealer service department and the guy said they don't have any calibration for the H3's, even 32's to 33's!
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RE: H3 actual gas mileage
ORIGINAL: Sewie But I didn't buy a Hummer for the gas mileage. i did, but mainly for the crappy mileage. the faster i use up the fossil fuels, the faster science will come up with renewable energy sources. dealers are lying to you when they say they don't have a way to reprogram for larger tires, they're not willing, based on some kind of safety/EPA/legal crapola. find a friendly mechanic with a tech II programmer, and i bet he/she could make it happen. |
RE: H3 actual gas mileage
i did, but mainly for the crappy mileage. the faster i use up the fossil fuels, the faster science will come up with renewable energy sources. |
RE: H3 actual gas mileage
ORIGINAL: shortbus dealers are lying to you when they say they don't have a way to reprogram for larger tires, they're not willing, based on some kind of safety/EPA/legal crapola. find a friendly mechanic with a tech II programmer, and i bet he/she could make it happen. thanks...and guess who my dealer is???? |
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