NEFI Applauds ASTM Heating Oil Specification For Up To 50% Biodiesel Blends

WASHINGTON, April 23, 2026 /PRNewswire/ -- The National Energy & Fuels Institute (NEFI) applauds the ASTM revision of the specification for fuel oils, ASTM D396, to include grades for fuel blends containing 21% to 50% biodiesel. For retail heating fuel dealers across the Northeast,...