Reduced Durability due to a Friction Modifier in Heavy Duty Diesel Lubricants

851260

04/01/1985

Event
SAE Government Industry Meeting and Exposition
Authors Abstract
Content
RAPID CORROSIVE WEAR OF COPPER ALLOYS caused by a friction reducing additive was encountered in field tests of experimental lubricants. This oil soluble molybdenum, sulphur, and phosphorous containing additive subsequently was used in several commercial heavy duty diesel lubricants although the additive manufacturer did not recommend it for such applications. Numerous engine failures occurred due to the aggressiveness of this additive toward copper. Standard laboratory engine test methods or standard bench test methods did not predict the severe field problem.
A new laboratory engine test method has been shown to duplicate the field failures. Bench test methods to duplicate the field failures are discussed. The mode of failure is shown and described.
Meta TagsDetails
DOI
https://doi.org/10.4271/851260
Pages
12
Citation
Hercamp, R., "Reduced Durability due to a Friction Modifier in Heavy Duty Diesel Lubricants," SAE Technical Paper 851260, 1985, https://doi.org/10.4271/851260.
Additional Details
Publisher
Published
Apr 1, 1985
Product Code
851260
Content Type
Technical Paper
Language
English