Warren Oil Company Inc. has introduced Lubriguard SkyBlue DEF (diesel exhaust fluid) for selective catalytic reduction engines that comply with the U.S. Environmental Protection Agency’s 2010 diesel emissions standards. Lubriguard SkyBlue is formulated to meet all EPA standards and bears the American Petroleum Institute’s API symbol, which guarantees that the product will be certified and tracked across the international supply chain for standards of product manufacturing, handling and packaging, quality assurance and safety/environmental protection.
