SYMPOSIA PAPER Published: 01 January 1986

Section 1 (L-33 Test): Performance Test for Evaluating the Moisture Corrosion Tendencies of Automotive Gear Lubricants


This test method describes a test procedure for evaluating the rust and corrosion inhibiting properties of a gear lubricant while subjected to water contamination and elevated temperature in a benchmounted hypoid differential housing (carrier) assembly. The customary test is a seven-day test; an abbreviated test of one day may also be run.

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Developed by Committee: D02
Pages: 11–42
DOI: 10.1520/STP35333S
ISBN-EB: 978-0-8031-4958-8
ISBN-13: 978-0-8031-0940-7