Did you know a detailed engine increases the resale value of your car? It's a well-known fact that people who take the time and effort to detail their engines also take better care of their cars. All it takes it BLACKFIRE All-In-One All Purpose Cleaner, a detailing brush, and a little time. Engine detailing is nothing more than cleaning the exterior of the engine and the engine compartment, and applying dressing to protect and beautify the engine. It's very easy to do, and requires no more than 45 minutes to and hour every couple of months.