octane baby!

[rocco16v at netzero.net (L F)]

My take; (you all just KNEW I couldn't stay out of this...)
Higher octane will not, in and of itself, give better mileage.
HOWEVER,
If you have a knock sensor (ks) ignition system, the ks will keep your ignition advance at maximum for any condition, thereby providing max power, thereby requiring the least amount of throttle opening required for that condition, thereby giving you the best mileage.
Or, maybe not....
:)
Larry
  ----- Original Message ----- 
  From: Dan Smith 
  To: scirocco-l@scirocco.org 
  Sent: Sunday, September 14, 2003 3:27 PM
  Subject: octane baby!


  Yeah, a corny play on a song title, but I couldn't resist. Anyways, CO has octane ratings at the pump ranging from 85 to 94. With gas prices ranging from $1.77 to 1.99 respectively, I want to see if I can settle this hot debate among my housemates. Does higher octane gas equal better gas mileage? And enough of a better mileage to make it cost effective? This would be for my relatively stock 84 8v, which doesn't deserve high octane gas if it doesn't make a difference mileage-wise. When responding, please try to keep the formula equations to a minimum as high school chem was a long time ago and I just squeeked by.
   
  TIA,
  Dan


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