The reduced fuel consumption is a key factor to why the OXE Diesel engine emits significantly lower HC and NOx than petrol outboard engines. 1L of diesel produces approximately 17.8g compared to 1L of petrol which produces 33.4g HC+NOx when ignited.

As OXE Diesel consumes up to 42% less fuel than comparable petrol alternatives, the OXE Diesel reduces the HC+NOx emissions by up to 69.8%.

Reduced emissions (HC + NOx)

Source information:   U.S. EPA regulation limits diesel and petrol outboards