Using this coolant filtration system is easy. First, gather the recommended tools like a 10mm deep socket and ratchet, 11/16 open - end wrench, large adjustable wrench, regular screwdriver, utility knife, and diagonal cutters. Install all the components as per the included instructions. The silicone hose fittings are pre - assembled, so you can make simple, leak - proof connections. The filter can be easily unscrewed for replacement. It's recommended to replace the first filter at 500 miles, and then the second and third filters at 3,000 miles each. After 3 filter changes, you can replace the filter once a year. Keep your engine in top shape with this great coolant filtration system.