What is ultra low sulfur diesel?
• Ultra low sulfur diesel is a clean diesel fuel with a sulfur level at or below 15 parts per million (ppm) compared with 500 ppm for low sulfur diesel fuel. The Environmental Protection Agency has mandated that refiners must being producing ULSD by June 2006 for use in model year 2007 highway diesel engines. By 2010, all highway diesel engines must use ULSD. In conjunction with ULSD, highway diesel engines are required in 2007 to use catalytic exhaust emission control devices or particulate traps, capable of reducing emissions by 90% and more. New emissions standards to reduce nitrogen oxides (NOx), non-methane hydrocarbons (NMHC), and particulates will be phased in from 2007 to 2010. Similar emissions standards are being developed for locomotive and marine diesel engines. The refining process for ULSD reduces lubricity, which must be replaced for the engines to function well. When combined with ULSD, biodiesel acts as a lubricant; in just a B2 blend, biodiesel can fully restore lubri
U.S. Environmental Protection Agency (EPA) standards require a major reduction in the sulfur content of diesel fuels and emission levels from diesel engines and vehicles. To meet the EPA standards, the petroleum industry is producing Ultra Low Sulfur Diesel (ULSD) fuel, a cleaner-burning diesel fuel containing a maximum 15 parts-per-million (ppm) sulfur. Effective June 1, 2006, 80 percent of the highway diesel fuel produced or imported is required to be ULSD fuel replacing most Low Sulfur Diesel (LSD) fuel, which contains a maximum of 500 ppm sulfur. Why is Ultra Low Sulfur a Clean Air ChoiceTM? ULSD fuel enables the use of cleaner technology diesel engines and vehicles with advanced emissions control devices, resulting in significantly improved air quality. Annual emission reductions will be equivalent to removing the pollution from more than 90 percent of today’s trucks and buses, when the current heavy-duty vehicle fleet has been completely replaced in 2030. What are other Clean Die
