Date: Sat, 29 Jan 2005 21:23:58 GMT From: "Walt Kienzle" <wkienzle.nospamnospamlobal.net> Subject: Re: Saab newbie
"Pooh Bear" <rabbitsfriendsandrelationsnospamail.com> wrote in message news:41FBFCFC.3B939647nospamail.com... > James Sweet wrote: > >> "Pooh Bear" <rabbitsfriendsandrelationsnospamail.com> wrote in message >> news:41FBF11B.C8B6C704nospamail.com... >> > James Sweet wrote: >> > >> > > "Pooh Bear" <rabbitsfriendsandrelationsnospamail.com> wrote in message >> > > news:41FBE48B.881F4166nospamail.com... >> > > > >> > > > WhyAsk wrote: >> > > > >> > > > > I agree with the octane. I have a 2000 9-3 base and it does seem >> > > > > to >> > > > > run a little better on premium (Marathon 93 octane). >> > > > >> > > > *93* octane is your idea of premium ???? :-( >> > > > >> > > > UK 'standard' unleaded ( often called 'premium' for some puzzling >> reason >> > > > ) octane is 95 octane - the premium version ( often called 'super >> > > > unleaded ) is 97/98. >> > > > >> > > > >> > > > Graham >> > > > >> > > >> > > IIRC the octane ratings are different so you're comparing apples to >> oranges. >> > > 93 is the very best stuff you can get here. >> > >> > You mean US the octane rating method is different to UK octane ? Sounds >> odd to >> > me. >> > >> > Octane is a pure hydrocarbon. The octane rating is intended to compare >> > the >> > performance of gasoline ( made of many hydrocarbons ) to a known >> > reference >> as a >> > percentage IIRC. >> > >> >> Yes, just like your gallons are different than our gallons. >> >> http://www.jag-lovers.org/xj-s/book/Octane.html >> >> " Many people have read this and concluded that the car calls for >> Premium, >> since the typical octane ratings in the U.S. are 87/89/91+ -- but that's >> because they fail to notice the reference to RON. US gasolines are not >> rated in RON; they are rated in the average of RON and MON, commonly >> marked >> on the pump as (R+M)/2. Unless you know how to convert RON to (R+M)/2, >> the >> spec in that handbook is meaningless. " > > Thanks for the info. > > I also found this > http://www.btinternet.com/~madmole/Reference/RONMONPON.html > > Odd that the method hasn't been internationally standardised. > > > Graham > > Before we tackle that, we should standardize/standardise the English language ;-)
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