Using your K&N air filter is a breeze. First, find your vehicle's factory air box. Open it up and take out the old filter. Then, simply drop in your new K&N air filter. Make sure it fits snugly in place and close the air box. As for maintenance, the filter is washable and reusable. Every so often, check it for dirt and debris. If it looks dirty, remove it from the air box. Wash it gently with a mild cleaner and warm water. Rinse thoroughly and let it dry completely. Once dry, apply the provided filter oil evenly. A few things to note: always follow the installation instructions carefully to avoid any issues. Don't use harsh chemicals when cleaning the filter as it can damage the cotton media. Also, keep an eye on the filter's condition, especially if you drive in dusty or dirty environments.