EnviroFuels' diesel-fuel catalyzer is an application-engineered chemical compound for diesel-engine fuel that has completed testing and received verification from the U.S. Environmental Protection Agency's environmental technology verification program. The catalyzer reduces air pollution and improves fuel economy and performance in large reciprocating engines. Fuel consumption is improved 5% to 10% percent with significant reductions in total unburned hydrocarbons, nitrogen oxides, carbon dioxide and carbon monoxide emissions, the company says. EnviroFuels