Actually My car doesnt have coolant, most Venezuelan use just water in the cooling system
Discussion
water is fine too 🥳 the coolant system is how the engine stays at a consistent temperature, it uses flowing water from a belt-driven water pump to pull heat from the engine into your radiator. in places where the climate gets to freezing temperature or at altitudes enough to change the boiling point of water, coolant is used instead.
generally keeping your cooling system in good shape brings down the complexity of repairs, it's fine to top off water every now and then but if you're always topping off the cooling system that's not great