It has been decades since anybody sold a less than adequate oil. Synthetics are the most commonplace for a reason, they work for a much longer period of time than their predecessors. There is certainly great qualities in all racing oils but don't kid yourselves, we are racing rototiller motors . On a molecular level I am positive there are advantages to most high end race oils but only if we were running the same oils for thousands of laps but we don't. We change at obsessively short periods of time. There are oils that are much better in alcohol engines, myself I won't run anything but FHS62R, but for gas engines everything is good. You will hear feedback saying but this has this quality or that but when you're changing oil every 25 laps does it matter? I haven't seen a gas engine of any sort fail because of its oil since the late 70's/ early 80's.