Date: 18 Feb 2003 02:19:31 -0800 From: rjtnopsamcam.ac.uk (Roberto) Subject: Re: Gas Grade Question
"pablo" <pabloNnopsamsimplyhombre.net> wrote in message news:<RrP1a.1651$YH4.63850801nopsamsvr15.news.prodigy.com>... > 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 I suggest you look at this web page: http://www.btinternet.com/~madmole/Reference/RONMONPON.html It gives a good description of the RON/MON petrol/gas grades and what they mean. Roberto