Delspin HP oils are multipurpose lubricating and hydraulic oils formulated from a blend of highly refined base oils. They contain additives that protect against oxidation, foaming, wear, and rust. The high quality of the base oils and the superior additives help maintain suitable viscosity over a range of temperatures. Delspin HP oils contain a special zinc-free additive that provides improved corrosion resistance and water separation. They contain no ash-forming additives, preventing additive breakdown under high pressure and thereby avoiding filter blockage.