STP509A4B: Scope

    Pages: 36    Published: Jan 1980


    The Labeco L-38 Test Method is a technique for studying the resistance of engine crankcase oils to oxidation, copper-lead bearing corrosion, and deposition of varnish and sludge on engine parts under high-temperature heavy-duty service conditions. Such deposition is presumed to result from oil decomposition, oxidation, or other changes that occur in the lubricant in service.

    Paper ID: STP37221S

    Committee/Subcommittee: D02.09

    DOI: 10.1520/STP37221S

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