MODUK - DEF STAN 91-101
Lubricating Oil, Gas Turbine Engine, Synthetic Grade 5 cSt NATO Code: O-156 Joint Service Designation: OX-27 and OX-28
|Publication Date:||31 August 2001|
This Defence Standard specifies the requirements for two grades of synthetic lubricating oils. Those oils which meet the requirements for OX-27 are intended primarily for use in aircraft gas turbine engines and relevant ancillary equipment. Only those oils which also meet the requirements for OX-28 may be used in RN marine gas turbine engines.
Lubricating oil provided to this specification shall possess satisfactory performance and properties when used in appropriate vehicles and/or gas turbines and ancillary equipment operated by the Crown.