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Results of engine bench tests on a 1998 heavy-duty diesel engine have confirmed the emissions reduction performance of a U.S. Environmental Protection Agency (EPA) registered platinum/cerium bimetallic fuel borne catalyst (FBC) used with several different catalyzed and uncatalyzed diesel particulate filters (DPF's). Performance was evaluated on both a 450ppm sulfur fuel (No.2 D) and a CARB 50ppm low sulfur diesel (LSD) fuel. Particulate emissions of less than 0.02g/bhp-hr were achieved on several combinations of FBC and uncatalyzed filters on 450ppm sulfur fuel while levels of 0.01g/bhp-hr were achieved for both catalyzed and uncatalyzed filters using the FBC with the low sulfur CARB fuel. Eight-mode steady state testing of one filter and FBC combination with engine timing changes produced a 20% nitrogen oxide (NOx) reduction with particulates (PM) maintained at 0.01g/bhp-hr and no increase in measured fuel consumption.

Results of engine bench tests and vehicle programs on light-duty and heavy-duty diesels have confirmed that a bimetallic platinum and cerium diesel fuel borne catalyst (FBC) can reduce engine out emissions and improve the performance of diesel oxidation catalysts and diesel particulate filters. Particulate emission reductions of up to 25% for the fuel borne catalyst alone, up to 50% with the FBC and oxidation catalyst and in excess of 95% with the FBC and a diesel particulate filter have been documented. Vehicle and engine bench tests confirm regeneration of filters at exhaust gas temperatures as low as 280°C-320°C. Field trials on commercial fleets have confirmed engine bench test fuel economy improvements on the order of 6%. Measurements have also confirmed that ultra-low additive dose rates of 4-8ppm do not lead to increases in ultra-fine particulate emissions and significantly reduce ash loading to diesel particulate filters.