LUBE EFFECTS ON EXHAUST GAS OXIDATION CATALYST ACTIVITY
The effects of API SE engine oils on the activity of a 1975 prototype monolithic, noble metal oxidation catalyst have been studied in long-term multicylinder laboratory engine tests. Results of this work showed that oil consumption rates, up to 1 qt/100 miles, and lube ash up to 1.6%, do not significantly affect catalyst activity in 500 hour tests, equivalent to 20,000 miles (32,180 km). A higher-than-normal phosphorus-containing oil (0.32% P) caused significant loss in catalyst activity after testing for 30,000 miles (48,270 km). This suggests that any need for increased phosphorus-containing additives in future oils could cause catalyst poisoning before 50,000 miles.
New York, NY USA 10017
- Bouffard, R A
- Wadley, W E
- Publication Date: 1974-2
- Pagination: 8 p.
- TRT Terms: Catalysts; Catalytic converters; Engine oils; Exhaust gases; Lubricating oils; Phosphorus; Prototypes
- Subject Areas: Bridges and other structures; Highways; Safety and Human Factors;
- Accession Number: 00264125
- Record Type: Publication
- Report/Paper Numbers: SAE Paper No. 740135
- Files: TRIS
- Created Date: Jan 9 1975 12:00AM