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Mid Grade gas vs High Octane gas - better performance??



But the knock sensor retards timing to stop the knocking. The sensor is like 
a mike IIRC.
----- Original Message ----- 
From: "C Boyko" <roccit_53@scirocco.cs.uoguelph.ca>
To: " John S. Lagnese " <jlagnese@massed.net>
Cc: <dswalterwi@gmail.com>; <scirocco-l@scirocco.org>
Sent: Tuesday, March 13, 2007 9:20 PM
Subject: Re: Mid Grade gas vs High Octane gas - better performance??


> On 8:16 pm 03/13/07 "John S. Lagnese" <jlagnese@massed.net> wrote:
>> The higher octane gas performs better. I even get better mileage. Its
>> the knock sensor system. Higher octane can be more advanced timing.
>>
> My understanding is that you want to run the lowest octane fuel that will
> keep your engine from knocking. The knock sensor will take over once knock
> is detected, and pull timing. Having said that, I always run the highest
> octane I can get in my 16V. :)
> Cathy
>