IN PRINT — Power Plays: A look at 2017 engines
Most North American heavy-duty diesel engine manufacturers rolled out substantially revamped engines to meet the U.S. Environmental Protection Agency's (EPA's) 2017 Greenhouse Gas emissions regulations. Those rules were the final step for diesel engines in Phase 1 of the grand carbon dioxide reduction plan. Engine makers now have a few years to figure how to meet the next - and even more restrictive - round of fuel-efficiency improvements, which come into force for Model Year 2021 engines.
