MIL-PRF-9000H, PERFORMANCE SPECIFICATION LUBRICATING OIL, SHIPBOARD INTERNAL COMBUSTION ENGINE, HIGH OUTPUT DIESEL (16 SEP 1987)., This specification covers one grade of lubricating oil, Military Symbol 9250 (NATO Code 0-278), for use in advanced design high-output shipboard main propulsion and auxiliary diesel engines using fuel conforming to MIL-P-16884.