+10 for original Simple Green. It works even better if you add a tablespoon of Dawn dishwashing liquid to a quart ofthe Simple Green. Use it straight for tough grease busting and dilute about a half cup into a gallon of very warm water for general cleaning. A hand pumped garden sprayer works great for larger scale cleaning and is a lot easier on the hand than a spray bottle. Follow up with any good non-polishing auto wax.