
UP Tests Experimental Locomotive Exhaust Filter
OAKLAND, Calif. – Union Pacific Railroad has begun a year-long test in an Oakland rail yard to determine if an experimental after market exhaust system filter will reduce diesel engine emissions in older railroad locomotives. “Our goal is to find innovative methods of further reducing exhaust emissions to create a better environment,” said Bob Grimaila, Union Pacific’s vice president for environment and safety. A 1,500-horsepower yard locomotive built in November 1982 has been retrofitted with diesel particulate filters or “DPFs.” The DPF initiative is the result of a four-year program, funded in part by Union Pacific, to assess exhaust after