At 03:31 PM 11/26/96 -0600, you wrote:
>
>From: ragnew@islandnet.com@INTERNET on Tue, Nov 26, 1996 2:52 PM
>
>>He also indicated, on engines with knock sensors (ie. my '97 Dakota), the
>>computer adjusts the timing to suit the grade of gasoline. Therefore, the
>>higher the octane, the better the performance.
>
>That's only true to a point. The knock sensor will retard timing from a base
>reference when knocking is detected. It will not make the timing more
>aggressive than what it was designed for. That is, if the programing was
>designed around the use of 87 octane and the sensor does not detect knocking
>with it, 92 octane will not do anything to improve performance.
>
>Dave Clement
>
Dave, thanks for your comments.
I guess that leaves the question .... although it will run on 87 octane, is
the Dakota programmed for higher octane and the computer retards the timing
to use 87? I certainly don't want to waste dollars on higher octane fuel if
there is no gain.
I've noticed that some contributors to this list have indicated that their
Daks run much better on higher octane fuel.
Robert P. Agnew
ragnew@islandnet.com
Victoria, British Columbia
Canada
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