Using your K&N air filter is a breeze. First, find your factory air box. It's usually easy to spot under the hood. Open it up and take out the old air filter. Then, simply drop in your new K&N filter. Make sure it fits snugly and close the air box. That's it! As for maintenance, check your filter every 10,000 to 15,000 miles. If it looks dirty, it's time to clean it. To clean, use a K&N filter cleaning kit. First, spray the cleaner on the filter and let it soak for a few minutes. Then, rinse it gently with water. Don't use high - pressure water as it can damage the filter. Let it dry completely, and then re - oil it using the K&N filter oil. Follow the instructions on the oil bottle. Remember, keep your filter away from sharp objects to avoid tears. With proper care, your K&N air filter will last for the life of your vehicle.