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Royco® 481 is a mineral oil gas turbine engine oil that meets MIL-PRF-6081D.
Royco® 481 is a mineral oil–based fluid blended with modern additives for improved low-temperature and oxidation performance. Royco® 481 is suitable for use as a flushing and preservative fluid for aircraft components and fuels systems due to its longevity and corrosion protection. Royco® 481 is primarily engineered for gas turbine engines and specific military aircraft jet engines with approvals under MIL-PRF-6081D and MILSTD-2073-1C for preservative performance and fuel systems protection.
Product type: Mineral oil, gas turbine engine oil
Viscosity, cSt
@ 100°F: 10.50
@ −40°F: 2,700
Flash point: 151°C (305°F)
Pour point: −62°C (−79°F)
Trace sediment: 0.000
Acid number: 0.0.03
Ash (1.2μ mg/L): 0.51
Density (lb/gal @ 15.6°C): 7.34
Primary Chemistry:
Mineral Oil
Frequent turbojet component failure or replacement from ineffective lubricant
Inferior lubricant performance at extreme high or low temperatures
Metal-containing lubricant additives
Royco® 481 turbine engine oil can be used successfully across a range of equipment types, including but not limited to the following:
Gas turbine engines
Engine component lubrication
Gas turbine engine flushing fluid and preservative
Military aircraft jet engines
Royco® 681 has been tested and approved as a P-10 preservative under military specification MIL-PRF-6081D Grade 1010/1010N.
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