A unique blend of highly refined castor oil, a specially prepared synthetic and an additive system that reduces carbon and gum formation and provides excellent rust and corrosion protectionContains an exclusive additive that keeps power valves cleaner and working properlyKeeps on lubricating and provides extra protection on cylinder walls, bearing journals and other critical areas at temperatures much higher than other lubricantsBiodegradableNot intended for use in oil injection systemsCastor 927 is ideally suited as a premix for both leaded and unleaded fuels.