I learned a quick tip from a car dealer friend of mine regarding how to make your engine look awesome, for sale or otherwise... After you clean the engine compartment with the Simple Green, let it dry, then spray on TIRE DRESSING. Any kind will work fine... Just makes everything shiny and new looking... If you want to do a quick job, and don't have a lot of time to clean first, spray on the FOAMING TIRE CLEANER... Accomplishes the same overall effect, just not quite as well.