Using the Perrin Radiator Shroud is easy. First, make sure your vehicle is turned off and cooled down. You can then follow the provided installation directions to bolt the shroud onto the top of the radiator and core support. It's important to note that this shroud is designed to work with the OEM radiator. If you have a non - OEM radiator, it might not be compatible, so double - check before installation. As for maintenance, you can clean the shroud with a mild soap and water solution to keep its powder - coated red finish looking great. Regularly inspect it for any signs of damage or loose bolts. If you notice any issues, address them promptly to ensure the shroud continues to work effectively and keep your Subaru running cool.