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#1
09-28-2004, 09:30 AM
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high octaine
anyone find a noticable difference using high octaine gasoline?
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#2
09-28-2004, 09:43 AM
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Re: high octaine
yep
 kinda gets you in the wallet though
__________________
Black 2002 Silverado Ext Cab, Stepside, Z71, LS, 5.3
Quick Time Performance Electric Exhaust Cutout Hypertech Power Programmer III Granatelli MAF Sensor Kills 5spd Mustang 5spd Civic
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#3
09-28-2004, 09:57 AM
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Re: high octaine
I liked it when I had my HPP3...Ima LOVE it when I get my Nelson tune...one day..
__________________
1998 ECSB Z71
Whelen LED's Kenwood 2-way "BIG 3" 2500+ watt audio 
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#4
09-28-2004, 03:36 PM
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Re: high octaine
I tried changing octane's and didn't notice a big difference. I use to run 91 in it and now I run 89 in it and I haven't noticed a difference at all. It still gets' up and goes and I save a few pennies on fuel.
__________________
 2008 GMC ACADIA SLE Edition, 7 passenger model I AM Canadian!!
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#5
09-28-2004, 03:51 PM
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Re: high octaine
In the U.S. we have 93 octane, though. I can feel the extra kick.
__________________
Black 2002 Silverado Ext Cab, Stepside, Z71, LS, 5.3
Quick Time Performance Electric Exhaust Cutout Hypertech Power Programmer III Granatelli MAF Sensor Kills 5spd Mustang 5spd Civic
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#6
09-28-2004, 04:25 PM
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Re: high octaine
jeverett- you have a url for that nelson tune? I never heard of them.
__________________
Some people see things as they are and say "Why?". I dream of things that never were and say "Why not."" -George Bernard Shaw "Mind over matter: If she doesn't mind, It doesn't matter" -Nineball 
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#7
09-28-2004, 09:02 PM
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Re: high octaine
It's been my experience that if your motor runs good on 89 octane, with out any knocks or pings, than any higher octane is a waste of money. If you stay with good gas that has the best additives, than you're ok. I think you may even hurt your performance with higher octane then you need. It's my understanding that raising the octane actually raises the flash point of gas so a higher compression engine won't set the fuel off before the plug fires. (knocks and pings)
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#8
09-28-2004, 11:44 PM
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Re: high octaine
where can you get 93? I only have 92 in Washington State and Oregon
__________________
 2001 Silverado Crew Cab 2500 HD - 8.1 - Allison 6" RCD Lift with 35" BFG Mud Terrains Airaid Intake - 4" Magnaflow Exhaust - Hypertech Programmer
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#9
09-29-2004, 12:39 AM
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I too would like some more info on that "nelson tune", including a URL. Will it work with any performance upgrades or is it like most of the other tuning systems which are designed for "basically stock" engines????
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#10
09-29-2004, 04:06 AM
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Heres the url for your nelson custom tune....
www.nelsonperformance.com btw we have 93 octane here in Texas.
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#11
09-29-2004, 06:48 AM
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Re: high octaine
Quote:
__________________
1998 ECSB Z71
Whelen LED's Kenwood 2-way "BIG 3" 2500+ watt audio
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