Mobil DTE Oil HEAVY R&O Oil is a high performance heavy duty circulating oils primarily intended for continuous reuse in circulation lubrication systems for gears and bearings. Mobil DTE Oil HEAVY R&O Oil is formulated from high quality base stocks and a proprietary additive system to provide superior protection against rust, excellent resistance to oxidation and thermal degradation, and a high level of protection against wear, plus excellent resistance to high temperature corrosion of soft metals. Mobil DTE Oil HEAVY R&O Oil possess good demulsibility that permits water and other contaminants to separate readily from the oil in the system reservoir.