Using this S&B intake replacement filter is easy. First, locate the old filter in your 2003 - 2021 Dodge Ram's S&B Cold Air Intake System. Remove the old filter carefully and then install the new one in its place. Make sure it fits snugly. When it comes to maintenance, check the filter regularly for dirt and debris. If it looks dirty, you can clean it with a proper filter cleaner. For oiling, use the recommended amount of red oil (85 grams for the main part and 20 grams for the power stack if applicable). Always follow the manufacturer's instructions. Note that this filter is specifically designed for the mentioned vehicle models and engine type, so don't use it on other non - compatible vehicles.