make sure you do not mix up coolant with windshield washer.
coolant in the radiator should be greenish colour.
whether you need to change coolant at 60,000 is hard to say.
You should go to a store to change it. What they call is to flush your cooling system.
At the same time, they will tell you whether your cooling system is fine.
To save money, you can wait until there is a sign of leaking, if you do not take a long trip.