Mr. Greszler has been involved with diesel engine and commercial vehicle development since 1977, with experience in all aspects of engine and powertrain design and development, including heavy-duty diesel and natural gas engines and other alternative fuels. Also, he is working on overall road freight efficiency through integrated complete vehicle development and mitigation of greenhouse gas emissions associated with road freight.
From 1977-2001 he was with Cummins Engine Co. responsible for design and development of heavy duty diesel engines, including on-highway and off-highway applications.
In 2001, he became Vice President, Engineering for Volvo Powertrain, North America, a division of AB Volvo, with responsibility for engine development for Mack Trucks and Volvo Trucks North America, including US 2007 and 2010 emissions. In 2005, he took responsibility for Advanced Engineering for Engines and Vehicle Propulsion with focus on diesel combustion/emissions, hybrid propulsion, advanced transmissions, and alternative fuels. Currently, he is Vice President Government and Industry Relations focusing on fuel savings and CO2 mitigation from road freight transport and heavy-duty vehicle regulations. Other activities include serving as an officer and current chair of the Truck and Engine Manufacturers Association, member-Transportation Research Board Special Task Force on Climate Change and Energy, and National Academy of Science “Committee for Potential Energy Savings and Green House Gas Reduction from Transportation”. He has been a speaker at numerous conferences related to diesel engine and freight efficiency and has testified in the House Committee on Science and Technology relative to commercial vehicle technology programs.