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Discussing What octane should I run in the The Clubhouse Forum. Team, I've owned my car for about 2 weeks now and she's great. ... Modded Mustangs is the premier Ford Mustang Forum on the internet. We discuss all aspects of the Ford Mustang on the forum. Registered Users do not see the above ads. Please Register - It's Free! |
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May 10th, 2006, 02:11 AM
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#1 |
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Newbie
Join Date: Apr 2006
Location: Edwards AFB, California
Posts: 10
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What octane should I run
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Mustangs + Miller Lite+ Hot Chics + Hip Hop +Apple Pie = True American Culture |
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May 10th, 2006, 03:02 AM
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#2 |
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Regular
Join Date: Mar 2006
Location: Mesa, AZ
Posts: 52
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as long as you don't have detonation problems there is no reason to use the premium unless you have a tune that is optimized for the higher octane, other than than that you are just throwin your money away. good luck.
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May 10th, 2006, 07:03 AM
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#3 |
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MM Ninjas!
1990 Mustang LX
9.36@143 mph
Join Date: Jan 2006
Location: Fond du Lac, Wisconsin
Posts: 6,506
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Too much octane hurts power output. Internal combustion engines make max power when they are on the verge of detonation. Using more octane than what is needed will cost horsepower, not gain it.
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Racing in memory of Dave Bandt 11/19/69 - 3/23/08 "he's traded his wheels for wings" Professor of Natural Aspiration  Thanks to: Artie at Trick Flow, Dave at Team Z Motorsports, Brian at Total Engine Airflow and Harold at Furo Racecraft |
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May 10th, 2006, 08:05 AM
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#4 | |
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MM Ninjas!
2000 mustang GT
11.79@125
Join Date: Jan 2006
Location: PURCELL, OKLAHOMA
Posts: 8,905
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i belive the recomended is 89 or 91 i cant remember
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May 10th, 2006, 08:38 AM
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#5 |
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Maintenance Man
2002 Mustang GT
11.47@120.58
Join Date: Aug 2005
Location: Valdosta, GA
Posts: 3,944
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87 is recommended unless you have a Mach1 or Cobra, then it's 91.
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May 10th, 2006, 11:45 AM
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#6 |
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Enthusiast
Join Date: Aug 2005
Posts: 664
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so 87 for 2v ( unless high octane tune ), 87-91 for 3v, and 91-93 for 4v.
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May 10th, 2006, 07:53 PM
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#7 | |
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Regular
Join Date: Aug 2005
Posts: 213
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Octane rating is resistance to burning, so running high octane is only running gas that is more resistant to detonation, if you dont need it, youre wasting your money. |
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May 10th, 2006, 11:35 PM
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#8 |
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Hardcore Enthusiast
Join Date: Feb 2006
Location: Pewaukee, Wisconsin
Posts: 1,253
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would it be good to run not regular but the next up in a v6 when i put full exhaust on?
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May 11th, 2006, 06:55 AM
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#9 |
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Modded Autos Site Mod
1999 Ford Mustang V6
14.79 @ 92.15
Join Date: Aug 2005
Location: Evans, GA/Athens, GA
Posts: 7,242
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not if you arent tuned for it. get an xcal 2 tune for all of your mods then have it tuned for whatever octane you want to run. i am tuned for 93 octane
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ModdedAutos 1999 Mustang V6 I used to list my mods here but stopped when I exceeded 255 characters. 
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May 11th, 2006, 08:36 AM
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#10 | |
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MM Ninjas!
1990 Mustang LX
9.36@143 mph
Join Date: Jan 2006
Location: Fond du Lac, Wisconsin
Posts: 6,506
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__________________
Racing in memory of Dave Bandt 11/19/69 - 3/23/08 "he's traded his wheels for wings" Professor of Natural Aspiration Thanks to: Artie at Trick Flow, Dave at Team Z Motorsports, Brian at Total Engine Airflow and Harold at Furo Racecraft |
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