3D Grand Slam is a heavy duty degreaser designed to help you clean stubborn build ups in the engine bay and beyond! Grand Slam can be used at a dilution of 4:1 all the way up to 10:1, providing you with an awesome value. Spray it on the engine bay and let it sit for a minute or two only ideally in a shaded area. Rinse it off or blow the engine off with compressed air, then wipe off any remaining moisture with a rag or use a quick detailer. Upon completion you'll be amazed at Grand Slam's cleaning power and how great your engine bay looks! 3D states that this degreaser is so powerful, that it is also used by mechanics that want to clean the engine, axle area, carburetors and other really greasy and oily areas. This power helps clean all of the dirty engine bay areas with ease, but means that Grand Slam should be used with care and never allowed to dry onto the surface or used on painted areas. If you need to clean under the hood, the 3D Grand Slam!