How do you flush the radiator in a 1989 Toyota Cressida?

To flush the radiator in a 1989 Toyota Cressida, first ensure the engine is cool and then remove the radiator cap. Drain the old coolant by opening the drain valve at the bottom of the radiator and allowing it to flow into a container. Next, fill the radiator with a mixture of water and a radiator flush product, running the engine for about 10-15 minutes with the heater on to circulate the solution. Finally, drain the flush solution, rinse with clean water, and refill with the appropriate coolant mixture.