T TRD.AE92 500 RPM Senior Member Joined Apr 10, 2009 Messages 780 Points 1,528 Oct 28, 2009 #1 Check the below animation and drama, The answer was there... YouTube - Octane Ratings and the 4 Stroke Engine Cycle
Check the below animation and drama, The answer was there... YouTube - Octane Ratings and the 4 Stroke Engine Cycle