What would be the best mix of Motorcraft Gold coolant to water in a country where the temperature is never below 70f? I want to keep the corrosion protection but don't need it to act as antifreeze. I'm going to change my water pump for a high volume one since I road race the car a bit and figured since I'll have to drain the coolant what would be a good ratio or if anyone has any recommendations on another coolant. The Motorcraft has worked fine for the 10 years I've had my 2007 Mustang GT but technology advances and asking never hurts.