Soots from Used Diesel Engine Oils - Their Effects on Wear as Measured in 4-Ball Wear Tests Fuels and Lubricants Dept.General Motors Research Laboratories Warren, MI

Format:

Conference/Event

Author/Creator:

Rounds, F. G. (Fred G.), author.

Conference Name:

SAE International Congress & Exposition (1981-02-23 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1981

Summary:

Diesel engine oil soots from different engines have the appearance of carbon black but contain significant concentrations of engine oil additive elements. Evaluation of the soots in 4-ball wear tests supported the theory that the soots reduce the antiwear additive effectiveness by preferentially adsorbing the active antiwear additive components before they can form the essential antiwear surface coating rather than removing the surface coatings by abrasion after they are formed. Engine load and exhaust gas recirculation have large effects on the soot prowear characteristics, whereas engine refinements, engine make and oil type have lesser effects. No antiwear additives were found more effective than the currently used zinc dialkyl-dithiophosphates. Several preferential adsorber additives were effective in simple blends but not in fully formulated engine oils

Notes:

Vendor supplied data

Publisher Number:

810499

Access Restriction:

Restricted for use by site license