Re: octane

[Godfrey DiGiorgi <ramarren@domain.elided>]

>High Octane: Our international friends use a different
>octane rating method than do domestic Alfisti. The numbers
>are a couple notches higher on their scale. From what I
>recall from my time in Germany, our 93 equates to 97 or 98.

US octane ratings are mandated by the Feds to be posted using the average 
of Research and Motor octane ratings, (R+M)/2. Most European and UK 
ratings are simply the Research octane rating.

Godfrey

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