Premium Quality Wholesale Supplier Of Diesel Fuel EN590 / Aviation Diesel Fuel for Sale Diesel Fuel EN 590 is the current standard for all automotive diesel fuel sold in the European Union member states and other European countries. This grade of fuel is also called ultra-low sulphur diesel (ULSD).All road diesel (DERV) that is now sold in the UK meets the EN 590 standards and has a compulsory 7% by volume biodiesel component blended into it, usually EN 14214 FAME biodiesel. This is optional for EN 590 fuel used as gas oil, as is the cetane content.EN 590 compliant fuels supplied by Crown Oil include red diesel (EN 590 gas oil )and DERV diesel (EN 590 diesel).