Originally Posted by rcmatt
Somehow people always translate higher octane equals more power.

That is not true.

A quick Google search for "octane and performance" brings up plenty of evidence that it is true, at least to an extent. If you want some heavy reading try downloading the PDF report here: Effect of Octane on Performance, Energy Consumption and Emissions of Two Euro 4 Passenger Cars

Quote: "The best agreement between performance and fuel octane number was found using an Octane Index [(1-K).RON + K.MON] with a K-value of minus 0.6 or even more negative.".

So now you know.

2011 Morgan 4/4
1932 Austin 7 Chummy