Browse Publications Technical Papers 2004-01-1888
2004-06-08

The Effect of Phosphorus and Boron Lubricant Oil Additives on Catalyst and Engine Durability 2004-01-1888

To investigate the effect of removing phosphorus lubricant additives from engine oil, a mileage accumulation programme was run using four 1.6 litre gasoline vehicles, two of which used phosphorus based lubricant oil additives, and the other two used boron based lubricant oil additives. The work showed that the catalyst systems deactivate during mileage accumulation, but emissions were still within the European Stage IV legislative limits at the completion of the mileage accumulation programme. Vehicles run with the boron oil show lower tailpipe emissions than the vehicles run with the phosphorus oil.

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