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This calculator helps you determine the octane rating of a blended fuel mixture from two different fuel sources. Fill in the volumes and octane ratings of both fuels and hit the “Calculate” button to get the resulting octane rating of the mixture.
First you need to calculate the percentage of each fuel that will be in the final mixture. Then, use this equation to find your octane: ( [ % Fuel A ] x [ Octane of Fuel A ] ) + ( [ % Fuel B ] x [ Octane of Fuel B ] ) = Octane of Mixture. Here’s an example.
Aug 15, 2011 · A gasoline with an octane number of 92 has the same knock as a mixture of 92% isooctane and 8% heptane. To use our calculator, simply enter the Research Octane Number and the Motor Octane Number; click on Calculate and the minimum octane number, what you see at the pump, is returned.
Octane Calculator. This calculator determines the minimum octane rating, also know as the knock index, by the formula (R+M)/2. Octane rating number is defined as a value used to indicate the resistance of a motor fuel to knock. Octane numbers are based on a scale on which isooctane is 100 (minimal knock) and heptane is 0 (bad knock).
Octane Calculator. When your engine builder recommends a different octane than is available, sometimes it is necessary to mix two different fuels to obtain the correct octane. How do you know how much of each to use? Try our octane calculator to reach your desired octane.*
Octane Mixture Calculator. Desired Octane of Fuel : Lowest Octane Fuel : Highest Octane Fuel : Total Desired Gallons : Calculate Octane Mix.
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The octane number of a fuel is measured in a test engine against a mixture of iso-octane and heptane. If a gasoline sample has the same antiknock quality as that of a mixture containing 90% isooctane and 10% heptane, then the octane number for that sample is defined as 90.
