RE: WOW...what a MPG improvement!!!!

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RE: WOW...what a MPG improvement!!!! - 7/6/2008 8:44:47 AM   
zzpw3x

 

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After reading this tread, there are 10 minutes of my life I will never get back.

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RE: WOW...what a MPG improvement!!!! - 7/6/2008 5:16:40 PM   
duckstu

 

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I get 15.85 in daily driving in my 2006 H3.  On the freeway at 75-80 I get 18.  And the one time I drove for 200 miles at 45-60 mph I got just about 20 (19.9 or so).

So it seems the epa estimates are right (for my H3 at least).  16 combined city/highway and 20 highway (if you were driving 60 instead of 75-80).

If ImportKillers'' vehiclle is getting 8.9,...something is wrong with the engine, or he left the parking brake on.

< Message edited by duckstu -- 7/7/2008 5:56:16 AM >

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RE: WOW...what a MPG improvement!!!! - 11/16/2008 8:58:48 PM   
mt2ut1

 

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Hummerguy,

This is a request for some assistance. There is a group of non-believers on a post titled, mpg/h3. I am getting the same mileage as you and a bunch of the members can''t believe it. would you be so kind to post your results. I guess we got the good ones!



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RE: WOW...what a MPG improvement!!!! - 11/19/2008 4:12:39 PM   
croatone

 

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Not sure if you have tried this or not but you can reset the computer which is a factor in this situation by disconnecting your battery for 10 minutes. I have had several trucks in the past drop 2-3 miles per gallon when it had a bad 02 sensor. I have had bad 02 sensors in the past fail without a check engine light being on. 02 sensors measure how much gas is in the air fuel mixture along with emissions. If you live up north at a higher altitude with hills you use more pedal to maintain the same speed. Just some food for thought. If it isnt any of this. Also change your air filter if you havent for a while. I run a can of accetone every year or so to help clean the injectors. Every time I do this I get half a mile to the gallon back. Hope any of this helps....

(in reply to mt2ut1)
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RE: WOW...what a MPG improvement!!!! - 11/19/2008 4:55:25 PM   
KH3

 

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I just got my ''06 H3 about a month ago. I''ve only figured out the gas mileage twice. The first time which was about half and half around town and highway driving and I averaged 15.8 mpg. When I took a 2hr highway trip I got about 19.5 mpg. I now work in the city and do a lot of stop and go traffic and I know I''m getting worse than the 15.8. I''ll have to say I''m a bit disappointed but I guess it''s better than putting premium in the p.o.s. audi I traded in for the Hummer.

(in reply to croatone)
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RE: WOW...what a MPG improvement!!!! - 11/20/2008 7:00:41 AM   
wfturner

 

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quote:

ORIGINAL: importkiller

So last night while on my truck search we made a drive through NJ into PA and then back to soutehr NJ then home. Total of 370 miles or so. I filled up on teh turnpike, set my trip odometer to zero and set my cruise at 65 mph....set it much lower than normal just to see how much better my mileage would be. I was going to be on the pike for over 200 miles so I figured it would be a good true highway test at mileage......here is how many miles I went. Filled up again and got 21.7 gallons.... you do the math






That is the worst gas mileage I''ve ever heard of from an H3

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Post #: 51
RE: WOW...what a MPG improvement!!!! - 11/22/2008 9:35:00 PM   
BabyTank

 

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Interesting discussions.  I clicked this topic since I noticed that my wife has been getting about 14mpg with hers lately here in NY and I thought that seemed low. I just looked  up what the manufacturer''s EPA estimates were and they are now only 14/18.  When we got our 2008 they were estimate at the old rules at 16-20mpg.  When we first got it and took it for some highway driving (mostly me driving) we got about 20-22mpg in warm weather with no ac.  I think my wife uses the remote starter more than she should need to on cold mornings and that has brought it down some.  I think the driver has a lot to do with the mileage as well as the route.

I wonder if the guy with the low mileage has compared it from his to his wife''s drives or just averaged it over both. 

I''m a bit crazy with mpg ever since the prices went up. I''ve started using some of the techniques of mega-miles people to eak out another 4 mpg out of my everyday ride.  Alot can be said for high tire pressure, timing lights to use little brakes, shutting off at long lights, etc. I''m getting between 25-28mpg in city only driving where I used to get 22-24. don''t compare these #s to a hummer - thats with a crv 4 cylinder put put but the same techniques can help anyone in any ride. i would suspect that the type of tire can make a big difference too and if the special large tires are very grippy, they will also be worse on mpg. when my tires started getting bald, my mpg went up :-) I also gained 2mpg moving tire pressures from 32 (suggested) to 39-40. max rating is 44 so I leave a little gap for gaining heat as you drive in summer. my winter tires are on now so much more grip and mpg will surely go down some. i''ll check it out. this reminds me to check the tire pressures on the hummer now.  she has the onstar automatic emails but i don''t think they say actual pressures but just say they are ok, right? 


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2008 H3 Grey, Stock w/ Brush gaurd, power seat, sunroof only. We Added: Black Steps, Husky Mud Flaps

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