Surveying Tests of Diesel Smoke Suppression with Fuel Additives 730170

The diesel smoke-depressant effects of 26 fuel additives marketed in Japan were tested with the cooperation of the Fuel and Lubricants Committee of the Japan Automobile Research Institute (JARI) and the Tokyo Metropolitan Office.
These bench tests were carried out with a compound on several types of engines under the conditions of overload with heavy smoke; the four effective barium-containing additives were tested under further conditions which included improper engine maintenance, transient operation, and exhaust gas recirculation (EGR). The exhaust gas compositions and emitted barium solids were analyzed. Also over-the-road tests were performed with 12 city buses for two years.


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