Heavy-Duty Shop Degreaser
Top-Shelf is a hybrid cross between citrus and butyl. This makes the formula extremely strong, but still safe for the skin. It melts away tar, grease, and oil right off your trucks, engines, graders, heavy equipment, and motor parts, and you can even clean your tools with it to eliminate rust. Dilute it up to 40:1 by hand, or up to 80:1 if using a pressure washer.