How do you change the antifreeze on a Saturn SL2?
Step 1: Clean the radiator Step 2: Place a drain pan Step 3: Remove the radiator pressure cap Step 4: Inspect the pressure cap & hoses Step 5: Drain the radiator Step 6: Rinse the radiator Step 7: Add the coolant and water mixture Step 8: Bleed the system Step 9: Replace the pressure cap Step 10: Clean up. Step 1: Clean the radiator Make sure the engine is cool before you start. Your vehicle's cooling system sucks in air as you drive, which means insects, dirt and leaves can be pulled into the fins of the radiator fan. This condition prevents air from passing easily through the radiator, and can cause your car to overheat. Using a hose with a nozzle, a bucket of soapy water and a soft nylon brush, loosen the insects, leaves and other debris. Gently brush with the direction of the fins of the radiator fan, not against it. These thin metal fins are fragile and can be bent with this action if you're not careful. Follow this gentle cleaning with a gentle stream of water on the front and rear of the radiator. Don't turn up the hose to full pressure--a concentrated blast of water can be actually bend the fins of the radiator. In general, you should clean the radiator fins every 12,000 miles (19,000 km). Don't do it when the engine is hot, cold water can damage a hot engine. Wait until the engine has cooled before you start cleaning. Step 2: Center drain pan under the drain spout Never allow coolant to drain out onto the ground. Its sweet smell attracts animals that will drink it. Don't leave it to drain unattended in a pan for the same reason. Another way to protect wildlife from accidental spills is to use antifreeze that utilizes propylene glycol, instead of ethylene glycol. Antifreeze that is made with propylene glycol, such as SIERRA