1985-10-01

Formulating Advanced 4 Centistoke Gas Turbine Oils-A Feasibility Study 851833

ABSTRACT

A formulation study has been carried out to assess the feasibility of developing advanced gas turbine lubricants in the (4 centistokes) viscosity range intermediate between current MIL-L-7808 and MIL-L-23699 lubricants. Using additive technology developed on advanced MIL-L-27502 oils we have formulated several 4 centistoke polyol ester base stocks. Eight of the blends thus far tested have shown good to acceptable performance in the Erdco Bearing Rig Test run under MIL-L-27502 conditions. Various other key targets of a proposed new specification have been met or closely approached.

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