Posted by Ken in CO on Thursday, April 26, 2001 at 10:18AM :
In Reply to: Re: Don't forget Octane was calculated diffrently back then NTXT posted by David Sherman on Wednesday, April 25, 2001 at 10:56AM :
>>The octane number of any gasoline is the percentage by volume of octane in the octane/heptane mixture that just matches the gasoline in antiknock quality<<
This pretty much tells you that something has to be different. Since 'percentage by volume of octane in the octane/heptane mixture' is limited to a 100% octane volume, you get a maximum 100 octane rating using this system. Of course you can get fuel with a greater than 100 octane rating so...
Ken
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