Engine Bay Detail: To achieve a thorough engine bay detail, I start by spraying a foaming all-purpose cleaner to the surfaces to encapsulate dirt and grime. Allow the foam to sit for few minutes to penetrate stubborn stains, then agitate with a nylon bristle detailing brush, finally I'll lightly rinse off with water and wipe down for a pristine finish. A clean engine bay not only looks great but also helps in maintaining the engines performance by allowing possible leaks or other problems to be easily identified.