Have a extremely low mileage like new car. Intake manifold is a red crinkle coat from the factory - it is really dirty dusty. need to clean it and do NOT want to spray rise in with a hose like ppl do. Was going to either buy griots engine bay cleaner or cut simple green and water and spray, spray with water (from a bottle) and wipe - really paranoid about making the factory red crinkle coat finish chip or peel off.. any suggestions