Brand New! Maxima Castor 927 Pre-Mix Oil - 1 Liter Unique blend of highly-refined castor oil, a specially prepared synthetic and an additive system that reduces carbon and gum formation and is biodegradable Provides excellent rust and corrosion protection Made with esters and highly refined castor oil, this also contains an exclusive additive that keeps power valves cleaner and working properly Provides extra protection at the highest temperatures on cylinder walls, bearing journals and other critical areas