Engine Oil Additive Effects on the Deterioration of a Stoichiometric Emissions Control (C-4) System Fuels and Lubricants Dept., General Motors Research Labs. Warren, MI

Format:

Conference/Event

Author/Creator:

Caracciolo, Frank, author.

Conference Name:

1979 SAE International Fall Fuels and Lubricants Meeting and Exhibition (1979-10-02 : Houston, Texas, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1979

Summary:

Phosphorus, originating from the commonly used engine oil additive zinc dialkyldithiophosphate (ZDP), contributed to the deterioration in the performance of a stoichiometric emissions control system. Data obtained from a series of 200-hour engine-dynamometer tests suggest two separate means for phosphorus-induced system deterioration: reduced CO, NOx, and HC conversion efficiencies due to catalyst poisoning; increased oxygen sensor rich-to-lean response time and altered oxygen sensor output voltage due to sensor contamination. The presence of an alkaline metal detergent in the ZDP-containing engine oil resulted in less deterioration of converter HC efficiency, but had no effect on the other system performance parameters

Notes:

Vendor supplied data

Publisher Number:

790941

Access Restriction:

Restricted for use by site license