MIL-PRF-46167 Lubricating Oil, Internal Combustion Engine, ArcticThis performance specification covers one grade of internal combustion compression-ignition engine lubricating oil with military symbol OEA-30 and NATO Code O-183, suitable for arctic use \(see 6.1, 6.7 and 6.10\).

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MIL-PRF-46167D

3.3.2 Foaming. The oil shall not produce foam which will cause inadequate lubrication,

cavitation, overflow loss of lubricant, mechanical failure, or any other detrimental effect that

compromises performance.

3.3.3 Oxidation and wear protection characteristics. The oil shall protect internal loaded

engine components against excessive wear and oxidation.

3.3.4 Rolling valvetrain wear protection. The oil shall protect hydraulic roller followers

from excessive wear.

3.3.5 Ring-sticking, wear, and accumulation of deposits. The oil shall prevent the

sticking of piston rings and port clogging, and shall minimize the wear of cylinders, rings, and

loaded engine components such as cam followers, valve rocker arms, rocker arm shafts, and the

oil pump and fuel injection pump drive gears.

3.3.6 Friction retention characteristics and wear. The oil shall maintain a stable

coefficient of friction and shall minimize distress and wear during use in power shift

transmissions and other cooled friction compartments, or hydraulic systems such as steering and

disconnect clutches.

3.3.7 Seal deterioration. The oil shall minimize the deterioration of seal and friction

materials.

3.3.8 Soot Dispersing characteristics. The oil shall minimize engine deposits and

increased oil viscosity by stably dispersing soot, produced during diesel combustion, in the

lubricating oil.

3.3.9 Corrosion. The oil shall meet the requirements as specified in 3.3.9.1

through 3.3.9.2.

3.3.9.1 Bearing corrosion. The oil shall not corrode alloy bearings.

3.3.9.2 Metal corrosion. The oil shall not corrode metals.

3.4 Interface requirements. The oil shall meet the following interface requirement.

3.4.1 Homogeneity and miscibility. The oil shall be and shall remain homogeneous

under normal operational and storage conditions.

3.5 Support and ownership requirements. The oil shall meet the following support and

ownership requirement.