Date: Mon, 10 Feb 2003 12:33:46 -0400
From: Dexter J <>
Subject: Re: Gas Grade Question

Salutations: Unless you have gone for higher compression or your sensors are dead - you should be fine on 89 octane (midgrade here in Canada) fuel.. The knock sensors kick in and flatten the ignition if it thinks you are using too low an octane - but midgrade seems to work great for me on a 2.0 1989T.. -- J Dexter - webmaster - all tunes - no cookies no subscription no weather no ads no news no phone in - all the time Radio Free Dexterdyne Top Tune o'be-do-da-day Brian Setzer Orchestra - Jump Jive Wail pablo wrote: > > Could anyone tell me where to find information about the "AON" method Saab > seems to use when talking about fuel grade requirements? A sticker in my car > claims I need to use 93 AON, but in California it's (R+M)/2 everywhere, and > one can only find 91 grade as premium fuel anyway. The question is - are AON > and (R+M)/2 significantly different, and is the fact we are forced to use 91 > grade here in CA negatively affecting performance and engine integrity of > our Saabs? > > ...pablo

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