Bought a Vitz from a family friend who had his car parked in parking since a very long time, he bought the car and then due to some reason went abroad now he has come back and selling it. His car was just like brand new when he bought it and didnt use it at all except for 2..3 visits to the markets (genuine person so cannot lie and the condition of the car speaks for itself) now I opened the bonut, the coolant is there in the radiation but the reserve bottle's coolant has dried up formed a bit like chunks of cream, what do I do now? (Keeping in mind, the coolant genuinely came with it from the port according to him)