Preferred Coolant Temps

Currently running Renegade 112+ only because it was cheap from a friend. Got 20 gallons for $220. When I run out, I am going to try Sunoco 110 out of the pump near by which is currently $14 a gallon. I have all winter to decide and tune for what I will run next season. Even thinking e85 but that would require ordering a new carb.... lol
Expensive shiz for sure.