Using your DC Sport oil cap is a piece of cake. Just align it with the oil filler opening and turn it clockwise until it's snug. When removing, turn it counter - clockwise. Make sure the O - ring is always in good condition. If it looks worn out, replace it to keep a proper seal. To maintain your cap, clean it regularly with a mild soap and water solution. Avoid using abrasive cleaners as they can damage the anodized finish. Store it in a dry place when not in use to prevent rust or corrosion.