Your Tips for Better MPG?

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Your Tips for Better MPG?

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Your Tips for Better MPG? - 7/8/2008 9:09:19 AM

D VADER

Posts: 1199
Joined: 5/21/2007
Status: offline

I don''t want to give up my H3 but I''m looking for ways to increase my MPG.

So far I added a less restrictive CAI, Better flowing Billy Boat exhaust and a tuned PCM.
I''ve also altered my driving. I''m driving less and when I do I act like I have an egg between my foot and the gas pedal. When my tires wear out I''m thinking about undersizing the tire one width for a smaller foot print. Add about 5 more pounds of air pressure.

Anybody else have other ideas?

_____________________________

2007 H3X w/lux pkg, black on black, Starship from the "Dark Side"
Central Ohio

Post #: 1

RE: Your Tips for Better MPG? - 7/8/2008 9:26:15 AM

cbetts

Posts: 167
Joined: 4/7/2007
Status: offline

Go buy yourself a ScanGauge. This was the biggest help to me. I keep the MPG on the screen and keep a close eye on it. I found that my sweet-spot for MPG is about 63 MPH, but in town it is 43 (in fourth gear).

Besides, This is a great way to add a water temp and volt meter along with a way to read fault codes from the computer. Well worth the money.

Here is how they look installed in an H3: LINKY

_____________________________

Hummer Geek
http://www.bettssoftware.com

2006 H3/Slate Blue/5-Speed/Adventure/Sun Roof/Lots-O-Stuff

(in reply to D VADER)

Post #: 2

RE: Your Tips for Better MPG? - 7/8/2008 10:12:04 AM

HummerGuy

Posts: 6684
Status: offline

cbetts, your sweet-spot is what I have found also. I''m getting amazing highway mileage keeping it 65 and under. All I have done is do the PCMforLess tune, the AirDoc air intake and switched my entire drivetrain to full synthetic. Just doing those things, I get 375 to 400 Miles per tank before I have to refill.

(in reply to cbetts)

Post #: 3

RE: Your Tips for Better MPG? - 7/8/2008 12:18:25 PM

TexH3

Posts: 224
Joined: 9/14/2007
From: North Texas
Status: offline

My job is almost 30 miles from home. My wife''s part-time job is 7 miles. Her car gets 25-26 mpg on my round trip to work and back. My H3 gets about 17. Guess what I drive to work 3 or 4 days a week?

< Message edited by TexH3 -- 7/8/2008 12:20:42 PM >

_____________________________

Jim --
2003 H2 Red Lux (sold)
2008 H3 Graphite Lux

(in reply to HummerGuy)

Post #: 4

RE: Your Tips for Better MPG? - 7/8/2008 12:23:08 PM

Brodie

Posts: 131
Joined: 11/11/2007
Status: offline

I have been getting way better gas mileage due to the summer blend of gasoline. My truck went from giving me 14-15mpgs to now a soild 18.5mpg. No change in driving habits either. I may hit 80mph at times on the freeway (passing someone) but I usually keep it between 65-70mph. No PCM tune here.

< Message edited by Brodie -- 7/8/2008 12:25:08 PM >

_____________________________

Max Brodie
2007 H3 "Tactical Edition" - Black
(Drop-In Filter - Magnaflow Catback)

(in reply to TexH3)

Post #: 5

RE: Your Tips for Better MPG? - 7/8/2008 2:29:02 PM

D VADER

Posts: 1199
Joined: 5/21/2007
Status: offline

quote:

ORIGINAL: Brodie

I have been getting way better gas mileage due to the summer blend of gasoline. My truck went from giving me 14-15mpgs to now a soild 18.5mpg. No change in driving habits either. I may hit 80mph at times on the freeway (passing someone) but I usually keep it between 65-70mph. No PCM tune here.

I''m using Mobile 1 10W-30. Is that what you are using?

_____________________________

2007 H3X w/lux pkg, black on black, Starship from the "Dark Side"
Central Ohio

(in reply to Brodie)

Post #: 6

RE: Your Tips for Better MPG? - 7/8/2008 4:16:52 PM

Brodie

Posts: 131
Joined: 11/11/2007
Status: offline

I use Amsoil 0W-30.

_____________________________

Max Brodie
2007 H3 "Tactical Edition" - Black
(Drop-In Filter - Magnaflow Catback)

(in reply to D VADER)

Post #: 7

RE: Your Tips for Better MPG? - 7/8/2008 4:43:45 PM

D VADER

Posts: 1199
Joined: 5/21/2007
Status: offline

quote:

ORIGINAL: Brodie

I use Amsoil 0W-30.

0-30?? Is that a typo? 0 Weight seem impossible

_____________________________

2007 H3X w/lux pkg, black on black, Starship from the "Dark Side"
Central Ohio

(in reply to Brodie)

Post #: 8

RE: Your Tips for Better MPG? - 7/8/2008 4:45:10 PM

D VADER

Posts: 1199
Joined: 5/21/2007
Status: offline

Denso Iridium spark plugs promise improved MPG. Think its just hype?

_____________________________

2007 H3X w/lux pkg, black on black, Starship from the "Dark Side"
Central Ohio

(in reply to D VADER)

Post #: 9

RE: Your Tips for Better MPG? - 7/8/2008 5:41:59 PM

n0m4d

Posts: 71
Joined: 11/7/2006
Status: offline

I use (german) castrol syntec 0w-30.

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2007 H3 - Red 5sp w/ Sunroof, Toyo 35''s, PIAAs in the driving lights and Sirius on the HU

(in reply to D VADER)

Post #: 10

RE: Your Tips for Better MPG? - 7/8/2008 6:58:40 PM

Brodie

Posts: 131
Joined: 11/11/2007
Status: offline

quote:

ORIGINAL: D VADER

quote:

ORIGINAL: Brodie

I use Amsoil 0W-30.

0-30?? Is that a typo? 0 Weight seem impossible

Yup, 0W-30 oil!

_____________________________

Max Brodie
2007 H3 "Tactical Edition" - Black
(Drop-In Filter - Magnaflow Catback)

(in reply to D VADER)

Post #: 11

RE: Your Tips for Better MPG? - 7/8/2008 7:12:14 PM

novasaigo

Posts: 158
Joined: 2/24/2007
Status: online

I keep my 33" BFG AT KO tires at 50 PSI. When I am behaving I get a little less than 400 miles per tank. Then my friend told me that I should take the cover off of my air filter box because I have the cool K&N filter. He told me that if I took it off I would have more power.

Problem is that it seems to have a burst of power when that interesting sound comes out from under the hood. Now that I have been enjoying myself with a faster acceleration I have lowered down to about 350 miles per tank.

I just have to avoid temptation.

I''m thinking about getting a cat back exhaust. I heard that they sound great and add a bit more power too.

Nova...

(in reply to Brodie)

Post #: 12

RE: Your Tips for Better MPG? - 7/8/2008 7:12:48 PM

JeepeaterH3

Posts: 314
Joined: 1/12/2007
Status: offline

my tip... from experience....

interstate driving: From tampa to ft lauderdale

cruise at 70mph- took a tank and a quarter (approx) to get there.

cruise at 60mph on the way back- had a quarter of a tank left over..

on the way there.. had empty trailer... way back had a motorcycle on trailer.

significant difference in different interstate speeds.

(in reply to D VADER)

Post #: 13

RE: Your Tips for Better MPG? - 7/8/2008 7:15:35 PM

JeepeaterH3

Posts: 314
Joined: 1/12/2007
Status: offline

quote:

ORIGINAL: novasaigo

I keep my 33" BFG AT KO tires at 50 PSI. When I am behaving I get a little less than 400 miles per tank. Then my friend told me that I should take the cover off of my air filter box because I have the cool K&N filter. He told me that if I took it off I would have more power.

Problem is that it seems to have a burst of power when that interesting sound comes out from under the hood. Now that I have been enjoying myself with a faster acceleration I have lowered down to about 350 miles per tank.

I just have to avoid temptation.

I''''m thinking about getting a cat back exhaust. I heard that they sound great and add a bit more power too.

Nova...

i have never in my life seen my h3 even near the 300 mile mark on a tank. even bone stock! wtf!!

(in reply to novasaigo)

Post #: 14

RE: Your Tips for Better MPG? - 7/9/2008 6:11:03 AM

D VADER

Posts: 1199
Joined: 5/21/2007
Status: offline

quote:

ORIGINAL: JeepeaterH3

quote:

ORIGINAL: novasaigo

I keep my 33" BFG AT KO tires at 50 PSI. When I am behaving I get a little less than 400 miles per tank. Then my friend told me that I should take the cover off of my air filter box because I have the cool K&N filter. He told me that if I took it off I would have more power.

Problem is that it seems to have a burst of power when that interesting sound comes out from under the hood. Now that I have been enjoying myself with a faster acceleration I have lowered down to about 350 miles per tank.

I just have to avoid temptation.

I''''''''m thinking about getting a cat back exhaust. I heard that they sound great and add a bit more power too.

Nova...

i have never in my life seen my h3 even near the 300 mile mark on a tank. even bone stock! wtf!!

Must be the way your whipping your pony Mel!!

_____________________________

2007 H3X w/lux pkg, black on black, Starship from the "Dark Side"
Central Ohio

(in reply to JeepeaterH3)

Post #: 15

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