Non-road diesel

As noted in the conventional diesel section, use of low sulfur (500 mg/kg) has been gradually phased out of use--not only for on-road applications, but most non-road ones as well. This is reflected in the new, revised definitions section of the Fuels Regulation Streamlining rule, enacted by the Environmental Protection Agency (EPA) in December 2020. Whereas the EPA had previously applied separate designations for motor vehicle diesel and non-road, locomotive and marine (NLRM) diesel, the Fuels Regulation Streamlining rule combines these two into one designation, dubbed motor vehicle, non-road, locomotive and marine (MVNRLM) fuel.

All MVNRLM fuel is required to meet the agency’s ultra-low sulfur diesel (ULSD) requirements, namely sulfur content of no more than 15 mg/kg and ei