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Royco® 581 is a concentrated preservative oil compound for aircraft components and engines. It meets MIL-STD-2073-1C.
Royco® 581 is a concentrated version of a highly refined base oil with ashless, anticorrosion additive technology. Royco® 581 is designed to act as a preventative and protect aircraft engines from rust, corrosion, and the effects of humidity or acidic components from engine oil oxidation.
Royco® 581 is also suitable for use as a preservative for industrial gasoline- or diesel-fueled engines, industrial gearboxes, and machine tools. Royco® 581 can also be used as a flyaway oil for short-term use.
Product type: Concentrated engine oil
Kinematic viscosity, cSt (@ 100°F): 279
Kinematic viscosity, cSt (@ 210°F): 21.54
Pour point, (°F): 0
Flash point, (°F): 544
Primary Chemistry: Mineral Oil
Easy to dilute for immediate use
Uncompromising protection during short- or long-term storage
Excellent rust and corrosion protection
Reduces and prevents premature wear and damage
Inadequate lubricant protection from rust or corrosion
Byproduct formation from engine oil oxidation
Royco® 581 is a concentrated engine oil that can be used across a range of engine types.
Specification: MIL-C-6529 Type 1
MIL-SPEC Scope: This specification covers an oil-type corrosion preventative, which is a satisfactory lubricant for aircraft engines when applied as specified.
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