Using this radiator is easy. First, make sure your car's engine is cool. Then, drain the old coolant and remove the old radiator. Install this new Mishimoto radiator in place, and refill with the right coolant. When it comes to maintenance, check the coolant level regularly. Also, look for any leaks around the radiator. If you see any signs of damage, get it fixed right away. This will help keep your radiator working well and your car running smoothly.