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View Poll Results: What Octane Do You Use
87
5
2.03%
89
10
4.07%
91
94
38.21%
Higher
137
55.69%
Voters: 246. You may not vote on this poll

What Octane Do You Use

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Old Mar 11, 2008 | 07:00 PM
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Default What Octane Do You Use

What Octane do you use?
Old Mar 11, 2008 | 07:01 PM
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92-93
Old Mar 11, 2008 | 07:03 PM
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Sunoco gold 94

Old Mar 11, 2008 | 07:05 PM
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Sinclair used to carry 93 but now I can only find 91. Anyone know where you can get higher than 91 in Oklahoma City?
Old Mar 11, 2008 | 07:07 PM
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I sometimes hear you can run 87 and the computer will adjust to it and no harm done, is this true?
Old Mar 11, 2008 | 07:28 PM
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exxon 93 only cheaper gas will cause ur car to knock
Old Mar 11, 2008 | 07:31 PM
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91, the maximum available here at the top of the continent, in Colorado.

Old Mar 11, 2008 | 07:35 PM
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I always used 87 and it never been a problem. I know it cant be true but it always feel the best on cheep gas.
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Old Mar 11, 2008 | 07:35 PM
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93.....there is a place to buy 104 unleaded and I really wanna see how that feels
Old Mar 11, 2008 | 07:45 PM
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Originally Posted by nextime
I sometimes hear you can run 87 and the computer will adjust to it and no harm done, is this true?
Yes, New cars all have knock sensors that will retard timing to match the octane you put in the tank. Depending on the kind of driving you do, you may not notice the difference. However, if you take your car to the track, you certainly don't want to run with retarded spark. Your competition will be using the good stuff and maximum spark advance.
Old Mar 11, 2008 | 07:48 PM
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Originally Posted by Corvette-Chris
93.....there is a place to buy 104 unleaded and I really wanna see how that feels
Unless you are seeing KR under a WOT load...it will feel no different.

If you can tune specifically for that fuel, and get some timing advance out of the deal, then perhaps....


Best performance without tune alteration = the lowest octane you can get away with without inducing knock/ping.


Old Mar 11, 2008 | 07:50 PM
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93, Chevron if possible.
Old Mar 11, 2008 | 07:53 PM
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I think 91 is the highest here in Tucson. I know Chevon & Shell are 91, but I'm never checked Exxon.
Old Mar 11, 2008 | 07:54 PM
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Shell 93 a Tier1 gasoline
Old Mar 11, 2008 | 07:59 PM
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91 is about all you can get around here.
Old Mar 11, 2008 | 08:06 PM
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Originally Posted by Cozmo
93, Chevron if possible.
Same here
Old Mar 11, 2008 | 08:24 PM
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Mostly I use 93 but I will use anything 91 or higher.

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To What Octane Do You Use

Old Mar 11, 2008 | 08:32 PM
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for some reason my stock vette pings like crazy under aggressive driving with 91 octane fuel. i have to use 104 octane booster for it not too. dont know why that is.
Old Mar 11, 2008 | 08:36 PM
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Chevron 93 is readily available where I am.
Old Mar 11, 2008 | 08:37 PM
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why would you want to use 87 in a performance car? I use 93! and I spray 150 shot at it. No problems



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