I concur. We've had 15 consecutive days of mid to high 90s in Denver and I ride every day. Certainly the engine is going to run hotter at those ambient temperatures. You car engine will too but I've suffered no ill effects with my Opti-2 lubricated engines.Coryc - did you have an incident with opti2 and if so, what happened? What were the conditions/miles/mix ratio/motor setup/etc?? Inquiring minds want to know.
Many here are certainly running in temps above 80* with no issue.
Give us some details of your experience.
Tom