Browse Publications Technical Papers 790941
1979-02-01

Engine Oil Additive Effects on the Deterioration of a Stoichiometric Emissions Control (C-4) System 790941

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.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 17% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
JOURNAL ARTICLE

Multiscale, Multiphysics Computational Chemistry Methods Based on Artificial Intelligence Integrated Ultra-Accelerated Quantum Molecular Dynamics for the Application to Automotive Emission Control

2016-32-0067

View Details

JOURNAL ARTICLE

Multiscale, Multiphysics Computational Chemistry Methods Based on Artificial Intelligence Integrated Ultra-Accelerated Quantum Molecular Dynamics for the Application to Automotive Emission Control

2016-32-0067

View Details

TECHNICAL PAPER

Exhaust Gas Temperature Sensor for OBD-II Catalyst Monitoring

960333

View Details

X