Take a notice that the main ingredient is oil-soluble calcium sulfonate, known for metal lubricity (which makes sense.)
If you get a chance to research more about castor oils, you'll find that they increase tolerances by "varnishing" the surface a bit. It has lubricity but for high performance engines, you'll find the tolerances are too tight these days. Old engines...sure why not.
There are many that believe it protects well but should only be used on engines that are rebuilt often, due to build-up.
Thank you, MSDS.
