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On 11 Jul 2003 at 8:04, Jens Vagelpohl wrote: > as far as octane values are concerned, keep in mind that different > countries use different methods to determine octance content. I think there are just 2 methods of measuring octane: Research Octane Number (RON) and Motor Octane Number (MON.) In the US, the number you find on the pump is the average of these two. You'll see this on most gas pumps where it says RON + MON/2 The spec that VW used was just one of these, but I can never remember which one it was. Whichever it was, it was the higher of the 2, so our numbers always look low, by about 2-3 points, to Europeans. -- ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org