I got a friend who is obsessed with all things rotary. Hes getting close to finishing a complete rebuild/restore of a Gen-1 RX-7. Since I spend so much **** time on this site I was hitting him up about what kind of oils he was going to run. He said that hes heard from other rotary users that synthetics arent good for rotarys because the way they burn off. He says that the average operating temp of a rotary is quite high. And that when pushed can become "extremely" hot. (ie, 350+ degree's F) (he also described some story about white-glowing headers lol...) He asked me to see what you guys thought and see if there was anything to learn to help out from this wonderful resource we have here. So rotary users sound off!