The Clemson University International Center for Automotive Research (CU-ICAR) and Beaufort, SC-based EcoDual Inc. will focus their combined resources on conversion of diesel engines already on the road to natural gas operation and reduction of exhaust emissions. The team subsequently will address challenges associated with optimizing natural gas use in new diesel engines under development by OEMs. The team also will research strategies to develop clean combustion engines aimed at minimizing the need for costly and cumbersome exhaust aftertreatment. EcoDual's system allows conversion of a heavy-duty diesel to run on a combination of natural gas and diesel fuels. More than 60% of the engine's power is generated by burning natural gas. The U.S. EPA recently approved the first EcoDual conversion systems for the 15-L Cummins ISX Class 8 diesel engine. Development is under way for additional Cummins and Detroit Diesel heavy-duty engines.