Using this coolant overflow cap is easy. Just remove the old cap from your Subaru's coolant overflow tank and replace it with the Billetworkz cap. Make sure it's tightened properly to prevent any leaks. When choosing a color, pick one that suits your engine bay's style. As for maintenance, periodically check the cap for any signs of damage or wear. If you notice any cracks or if the seal isn't tight, it might be time to replace it. Also, keep it clean by wiping it with a soft cloth. Avoid using harsh chemicals that could damage the anodized or powdercoated finish.
