1. why do we use coolant + water for the radiator?
2. can i use only coolant, no water?
3. will my cooling system bacomes better n my engine temperature go down more if i use 100% coolant?
4. is it true if we use 100% coolant the radiator tends to crack at the joints n become weaker and prone to clogging? (heard this from few reputable pomen......)