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Old 08-28-2003, 04:53 PM
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1991300SEL 1991300SEL is offline
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Join Date: May 2003
Posts: 497
Some cars are equipped with anti-knock sensors and will retard the timing to compensate for inadequate octane.

I'm not sure I'd want my engine running in a degraded mode.

Fuel ain't cheap, but in the long run, good fuel can make a difference. My owners manual calls for 91. In my area there's 87/89/93. I use 93 - wouldn't think of feeding the car anything less, irregardless of what was said in any magazine article.
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