summer vs winter gas

From: Jim Miller (jim76712@swbell.net)
Date: Mon Oct 08 2001 - 21:23:14 EDT


In the summer my R/T runs pretty well on 87 but in the winter it will knock
unless I use 89. Could it be that cooler air in the engine causes more
spark advance?
JIm in Waco

kwreimer wrote:

> WOW! Your truck runs ok on 87 octane not mine. i need at least 89 octane
> Baby.



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