Your vehicle’s cooling system is more than just a radiator, water pump, thermostat, fan, and coolant. Well, OK, it is exactly that, but there is a lot more to an effective cooling system than just the ...

Open loop cooling systems use water to cool engines directly, while closed-loop systems use marine coolant and a heat exchanger to keep engines cool.

There are two checks you can easily do on your coolant: whether you have enough of it and if it’s still protecting your engine in cold temperatures.