I don't know what this glowing orange stuff is made of, but it's amazing! Looks like orange coolant. Simply spray on, leave on for a minute and rinse off. I hardly have to rub anything. Almost rebuilt my engine. I am attaching some photos of washing the underside of the hood. I have used it on all machines and around the house. If you use it on your engine, it stinks for a day or two while it "cooks" the residue, but it goes away.