...yes...Matt exactly. The only time we recommend running a higher octane is if you have a marginal cooling situation or you are in extremely hot weather.

One of the reasons they use 100 LL is for detonation and pre-ignition prevention. Most modern car engines use 87 octane fairly easily...even in hot environments as they have fairly sophisticated knock sensors and fuel metering and ignition timing control.

Using 100 LL virtually guarantees you wont have any problems like that in full scale aircraft. Weighing out a bit more power and cheaper gasoline vs engine longevity and possible detonation....the 100 LL is worth it in full scale as one can imagine. Your life is worth money...and also full scale aircraft engines are very expensive to overhaul/repair.