S2000 Octane

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Mar 20, 2008 | 04:12 PM

#11

INTJ

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Joined: Aug 2007

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If you read the archives, the motor is mapped to 93 octane, 91 will work, anything less is just gambling.

Mar 20, 2008 | 05:21 PM

#12

babowc

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Joined: Sep 2007

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From: Lawrenceville, GA

I filled with regular today to see what kind of mileage I can get out of it..

I got ~260 50/50 hwy/city on 93
Wondering what I'm gonna get on 87..

BTW, I think the S takes only 11 gallons or so.

Mar 20, 2008 | 05:45 PM

#13

shy_guyAP1

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Joined: Jan 2007

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13-/+gal is the tank

87 is no bueno for a car with an 11:1 cr

Mar 20, 2008 | 05:59 PM

#14

Spectre48

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Joined: Apr 2006

Posts: 227

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From: CT

Quote:

Originally Posted by shy_guyAP1,Mar 20 2008, 01:28 PM

If you have fast burning gas it can be completely burnt before the piston reaches TDC (Top Dead Center; the top of the stroke), when this occurs it is called "detonation" ....

Not to be nit picky, but detonation is when the air/fuel mixture auto-ignites before the spark plug fires. It will not burn "completely" before TDC.