Free Flowing: Life after ULSD August 1, 2014 TORONTO -- The transition to ULSD went as planned. But the cold could add wrinkles.
Study claims to debunk ULSD energy drop theory August 1, 2014 ARLINGTON, Va. -- Contrary to expectations, ultra-low-sulfur diesel (ULSD) fuel does not have lower energy levels, research sponsored by the American Transportation Research Institute has found.