Castor 927 is 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 protection. Castor 927 also contains an exclusive additive that keeps power valves cleaner and working properly. For all of us that wish to keep the air and water cleaner, Castor 927 is biodegradable. Castor 927 keeps on lubricating where other lubricants turn to carbon or vaporize, and provides extra protection on cylinder walls, bearing journals and other critical areas at temperatures much higher than other lubricants. Reduces carbon and gum formation and provides excellent rust and corrosion protection. Contains an exclusive additive that keeps power valves cleaner and working properly. Castor 927 is biodegradable. Recommended premix ratios: 50 - 80cc (24 - 32:1) | 125cc (24 - 40:1) | 250cc (24 - 40:1) | 500cc and up (32 - 60:1). Caution: Not intended for use in oil injection systems. When blending with alcohol, it normally requires more oil. Care must be exercised when blending with low specific gravity (below 0.730) race gasoline or aviation fuels and in temperatures below 35F as separation may occur. Separation may also occur in alcohol containing a high percentage of nitromethane. Check before using. Technical Data: SAE viscosity: 40. Color D 1500: Yellow. Gravity: 17.6 A.P.I. Viscosity SUS @ 100F: 617. Viscosity SUS @ 210F: 73. Viscosity cSt @ 40C: 133.1. Viscosity cSt @ 100C: 13.79. Pour point: -5F. Flash point: 420F. Fire point: 480F. Viscosity index: 99.
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