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Fresh coolant prevents corrosion, maintains proper pH balance, and ensures your engine stays within optimal temperature range year-round.
Video Guide Coming Soon
Step-by-step video walkthrough for this procedure
Never open a hot cooling system. Wait at least 2 hours after driving, or work on a cold engine. The system is under pressure when hot.
Place a large drain pan under the radiator petcock (usually at the bottom of the radiator). Open the petcock and let the coolant drain completely.
Close the petcock, fill the system with distilled water, run the engine with heat on full for 10 minutes, let it cool, then drain again. Repeat until the water runs clear.
Close the petcock. Fill with a 50/50 mix of the correct coolant type and distilled water. Use a funnel and fill slowly to minimize air pockets.
Many vehicles have a bleeder valve on the thermostat housing. Open it while filling until a steady stream of coolant (no bubbles) comes out. Run the engine with the radiator cap off until the thermostat opens.