Which octane?

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02-17-2006, 06:42 PM

billyboy1955

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Which octane?

What octane gas should I be using in my 90Gt. I have tried them all but do not feel a difference.

02-17-2006, 06:44 PM

Low_5.0

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Join Date: Jul 2005

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RE: Which octane?

If u wanna bump the timing up a bit, you will need to run higher octane, if your timing is set at 10, then regular is fine.

02-17-2006, 06:46 PM

88BlueGT

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RE: Which octane?

Bump timing/highter octane = more power

02-17-2006, 06:48 PM

RawGtPower

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RE: Which octane?

higher octane is more or less like a fuel injection cleaner. The higher the octane you go, the hotter you run the engine. If you have a stock stang, dont waste money on higher octanes, your car will run just fine on 87

02-17-2006, 06:57 PM

gspfunk

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Join Date: Nov 2004

Location: Texas

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RE: Which octane?

The higher octane helps prevent detonation, so it won't help you unless you've bumped your timing up past 13-14....

02-17-2006, 07:55 PM

JD1969

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Join Date: May 2004

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RE: Which octane?

Quote:

ORIGINAL: RawGtPower

higher octane is more or less like a fuel injection cleaner. The higher the octane you go, the hotter you run the engine. If you have a stock stang, dont waste money on higher octanes, your car will run just fine on 87

Sorry but this is wrong. Here read this if want to actuall know about octane and not just what some guy on the 'Net thinks it is.
https://mustangforums.com/m_1019975/tm.htm