Royco 555 Turbine & Helicopter Transmission Oil 1 Quart can

ROYCO 555 is an advanced 5 centistoke synthetic lubricating oil for gas turbine engines and helicopter transmissions.

The product is a blend of "hindered" polyol esters and a finely balanced modern technology additive package resulting in enhanced load carrying performance, anti-wear, corrosion protection, and excellent thermal-oxidative stability.