– Apply an engine degreaser to the entire engine compartment, focusing on areas with heavy grease and grime buildup – Use a soft-bristled brush to agitate the degreaser and dislodge stubborn dirt and grime while paying attention to crevices, hoses, and other hard-to-reach areas -Thoroughly rinse the engine compartment using a gentle stream of water to avoid electrical components – Apply an engine bay dressing or conditioner to rejuvenate the rubber and plastic components, providing a glossy finish.