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05-29-2006, 02:32 AM
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Hummer Veteran
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Join Date: Jan 2006
Location: Charlotte, NC
Posts: 47
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Re: premium unleaded
I'm the same way.. Always run premium... One of my business partners actually had the truck while I was out of town for a week.. and he filled it up with regular.. when I got back... The truck drove different enough to where I noticed it... Filled her back up with premium and it was back to normal... Might just be me.. But I'm sticking with the premium... Also, since I have a gas station.. The premium at cost price for me is only like a 6-8 cent difference...
Chet
__________________
2005 Desert Sand H2 SUT
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24" Echelon's w/37 Toyo M/T
Pioneer D1, 2 JL 8w3's Custom Enclosure
Custom Tru Dual Flowmaster's
Bi-Xenon HID Light Kit
AirRaid Intake
Smoked Out Lenses
Billet Everywhere
Real Wheels Air Horn
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05-29-2006, 04:20 AM
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Hummer Professional
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Join Date: Feb 2004
Location: Annapolis, MD USA
Posts: 365
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Re: premium unleaded
It's all in your head! My truck purrs like a kitten and all it's ever had is 87.  |
05-29-2006, 04:57 AM
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Hummer Authority
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Join Date: Sep 2003
Location: Canada
Posts: 1,251
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Re: premium unleaded
The higher octane in premium fuel only raises the fuels resistance to burn which is why higher compression engines require higher octane. The higher octane value will decrease the chances of preignition(detonation) adds no advantages to A lower compression engine
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05-29-2006, 05:14 AM
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Hummer Messiah
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Join Date: Jan 2003
Location: ENRAGEMENT FOR HIRE
Posts: 31,286
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Re: premium unleaded
Quote:
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Originally Posted by HUMTECH
The higher octane in premium fuel only raises the fuels resistance to burn which is why higher compression engines require higher octane. The higher octane value will decrease the chances of preignition(detonation) adds no advantages to A lower compression engine
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All I know is interior noise and throttle response among other things are very noticable.
Nothing I would want more than to lower my gas bill. Because of these differences I still use the 94.   |
05-29-2006, 12:29 PM
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Hummer Veteran
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Join Date: May 2004
Posts: 233
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Re: premium unleaded
Quote:
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Originally Posted by HUMTECH
The higher octane in premium fuel only raises the fuels resistance to burn which is why higher compression engines require higher octane. The higher octane value will decrease the chances of preignition(detonation) adds no advantages to A lower compression engine
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x2 |
05-29-2006, 12:50 PM
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Hummer Guru
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Join Date: Jul 2005
Location: Idaho
Posts: 4,744
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Re: premium unleaded
But, it helps my stock portfolio; especially if you are using Exxon/Mobil or Shell
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Black Sheep Hummer Squadron
(ME TOO)
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05-29-2006, 02:14 PM
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Hummer Guru
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Join Date: May 2005
Location: Virginia Beach
Posts: 5,081
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Re: premium unleaded
Quote:
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Originally Posted by f5fstop
But, it helps my stock portfolio; especially if you are using Exxon/Mobil or Shell |
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05-29-2006, 10:21 PM
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Hummer Veteran
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Join Date: Apr 2006
Location: Hanapepe, HI
Posts: 71
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Re: premium unleaded
thanks y'all for all the responses...i will stick with regular unleaded gas and NOT premium. i agree with all the comments...mahalos and aloha..
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09-08-2010, 07:29 PM
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Hummer Veteran
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Join Date: Jul 2005
Posts: 80
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Re: premium unleaded
Quote:
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Originally Posted by HUMTECH
The higher octane in premium fuel only raises the fuels resistance to burn which is why higher compression engines require higher octane. The higher octane value will decrease the chances of preignition(detonation) adds no advantages to A lower compression engine
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The Hummer tech in Utah said the same thing. I run 85 octane and my H2 runs great. He also said 85 octane is recommended in the higher elevations. 
__________________
2005 Black LUX
37x13.50R17 Toyo MT
Torsion keys. 2" rear coil spacers
2" wheel spacers
In Tune I2, Air Raid Filter, Air Raid MIT, throttle body bypass, straight pipe exhaust
Cognito UCAs. Kryptonite UCA ball joints. Kryptonite tie rods. Kryptonite death grip Idler. Moog HD pitman.
5.13 gears. E-locker front
Bilstein stabilizer
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09-08-2010, 07:54 PM
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Hummer Veteran
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Join Date: Jun 2009
Location: Texas
Posts: 122
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Re: premium unleaded
My 09 H2 manual recommends that premium be used. The engine on the H2 was changed in 08.
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09-09-2010, 02:54 AM
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Hummer Professional
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Join Date: Aug 2007
Location: Bartlett, Illinois
Posts: 486
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Re: premium unleaded
Quote:
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Originally Posted by Z06RB
My 09 H2 manual recommends that premium be used. The engine on the H2 was changed in 08.
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I notice quite the difference using premium in the 2008, noticed nothing when I ran it in the 2006
__________________
2008 H2 SUV Luxury: Solar Flare ext/Black int
SOLD 2006 H2 SUV Luxury: Pewter ext/Black int.
2002 Corvette Z06 Blue/Ebony (light mods)
1/4 mile: 11.661@118.86
2013 Audi S4
2002 Yamaha YZF R1 Blue/White
1/4 mile: 10.51@136
2006 Sea-Doo RXP (70.6mph GPS)
2005 Sea-Doo RXT
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09-09-2010, 05:03 AM
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Hummer Veteran
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Join Date: Jun 2009
Location: Texas
Posts: 122
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Re: premium unleaded
Quote:
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Originally Posted by MVR 155
I notice quite the difference using premium in the 2008, noticed nothing when I ran it in the 2006
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Good to know. I have not tried regular in it. |
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