Using your K&N air filter is easy. First, open your vehicle's factory air box. Then, simply remove the old air filter and drop in the new K&N filter. Make sure it fits snugly. That's it - you're ready to go! As for maintenance, it's recommended to check the filter every 10,000 to 15,000 miles. If it looks dirty, you can wash it with K&N's filter cleaning kit. When cleaning, gently rinse the filter with water, apply the cleaning solution, and then rinse again. Let it dry completely before oiling it with K&N's filter oil. Remember, always use K&N - recommended products for cleaning and oiling to keep your filter in top shape. Also, keep the filter away from sharp objects to avoid damage. With proper care, your K&N air filter will serve you well for the life of your vehicle.