Liquid Cleaner/Rust Inhibitor 

"Liquid cleaner/rust inhibitor designed for high-pressure spray applications. This versatile cleaner is very low foaming, oil splitting and suitable for all metals. M-HP-2 also meets a variety of specifications including MIL-C-29602.
https://www.armakleen.com/products/armakleen-m-hp-2?fbclid=IwAR0wAGiyRN-m8tQUF9mL5h5uf29V_4sM33-tBzfdXEutcgb-uYjJWNzlQrc