A Bench Technique for Evaluating High Temperature Oxidation and Corrosion Tendencies of Automotive Crankcase Lubricants 680538
A technique for evaluating high temperature oxidation and corrosion tendencies of automotive crankcase lubricants is described. The technique utilizes a versatile bench apparatus which, with a minimum of modification, can be used for either evaluating thermal oxidation stability of gear lubricants or oxidation-corrosion tendencies of automotive crankcase lubricants. The apparatus is relatively compact and requires a minimal lubricant sample. Design of the apparatus permits close control of all operating parameters and provides satisfactory test data repeatability. Retainable copper-lead test bearings are used as the indicator in predicting a pass or fail of fully formulated crankcase lubricants as in the case of the CRC L-38-559 (Federal Test Method 3405) technique. Engine and bench test data are compared to illustrate the capabilities of this new bench technique.
Citation: Staudt, J., Lepisto, P., and Vitkovits, J., "A Bench Technique for Evaluating High Temperature Oxidation and Corrosion Tendencies of Automotive Crankcase Lubricants," SAE Technical Paper 680538, 1968, https://doi.org/10.4271/680538. Download Citation
J. J. Staudt, P. R. Lepisto, J. A. Vitkovits