Probably a stupid question, but reading about different coolants online has me a bit confused. In my other ford (a focus) I use the normal good for all makes and models green prestone coolant. However, as I was reading about coolant capacity for my fox, I read that I should not use the all make and model coolants. Also read not to do the 50/50 mix, but to use more water then coolant since I live in south florida and water is better at handling the heat, the coolant just helps keep the vapor point down. Right now, it appears I am running plain water. My radiator appears to be new, as it looks new and the rest of my engine doesn't, also the heater core has been bypassed. I am also running a electric fan which the previous owner wired to run all the time the engine is on. So, what do you guys use in your cars? Oh, on a side note, what is the average running temp on these cars? When I run mine, usually I get right on the highway and it'll get to about 240 before it drops and stabilizes around 190-210 on an aftermarket gauge.