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2013-14 Shelby GT500
Octane requirements
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<blockquote data-quote="Farmer-Ted" data-source="post: 12372745" data-attributes="member: 2503"><p>Altitude also comes into play. At higher altitudes you don't need as high a octane rating because there is less air so less chance of detonation at a given timing advance. Car will not pull timing running 91 octane. I live at 4200 feet, we only have 91 octane because of the lower air pressure. We are down about 15% power compared to you guys at sea level. So using 93 octane or an octane booster here will have no affect on HP because the timing advance is already at the maximum.</p></blockquote><p></p>
[QUOTE="Farmer-Ted, post: 12372745, member: 2503"] Altitude also comes into play. At higher altitudes you don't need as high a octane rating because there is less air so less chance of detonation at a given timing advance. Car will not pull timing running 91 octane. I live at 4200 feet, we only have 91 octane because of the lower air pressure. We are down about 15% power compared to you guys at sea level. So using 93 octane or an octane booster here will have no affect on HP because the timing advance is already at the maximum. [/QUOTE]
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2013-14 Shelby GT500
Octane requirements
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