Hi
anybody, please tell me I am new to driving I bought Vitz 2014 the car itself is working fine but I saw the radiator has some rusty water not soo rusty but I can say it's rusty and the coolant box is up to the minimum mark. Should I wash it or just fill the coolant box? Also, tell me do I need to add coolant to the radiator as well after flushing it and cleaning it properly, or just fill the radiator with water and the coolant box with coolant? It will be great if you suggest the best coolant for it I go for the best one I think there is one from Toyota as well.
Also, suggest a Good mechanic in Lahore near johar town