APC (All Purpose Cleaner) is a versatile interior and exterior all surface cleaner. This concentrated cleaner is the easy solution to get rid of those stubborn stains, dirt and grease from any surface in your vehicle, or for the exterior trim and wheel wells. Use it with microfiber towels. or a hand brush. If you are using the APC inside the vehicle, you may want some HD Protect or Universal Protectant. After using APC on your trim, you may want some Trim care or Instant shine. If you are buying a gallon, don't forget to get a labeled 32oz bottle and a sprayer.