Royco 581 Corrosion Preventative Compound 55USG Drum *MIL-C-6529C Type I
- Commodity Code 27101999
- Country of Origin United States
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The ash less anti corrosion additive package and the highly refined petroleum base oils protect the engine by minimising the effects of humidity and neutralising the acidic components of engine oil oxidation and combustion by-products. ROYCO 581 is normally used as a concentrated engine oil additive for the internal preservation of engines or engine parts and accessories during moderate outdoor to long term indoor storage periods.
Diluted with three parts engine oil (to MIL-L-6082 for piston engines - which has been superseded by SAE J1966 - or to MIL-PRF-6081 for turbine engines) the engine is then preserved for storage. This product can also be used as a fly-away oil for reciprocating engines however operation of engines preserved with the diluted material should be limited to a maximum of fifty hours before oil change. This additive has also been used successfully in the preservation of industrial gasoline and diesel fuelled engines as well as preservation of industrial gearboxes and machine tools.
Please Note: Turbine engines using synthetic engine lubricating oils should use a MIL-C-8188 corrosion preventative concentrate.
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