The Diesel Direct EDGE Family of Additives consists of a variety of proprietary formulas designed to help prolong the life of your fuel injection system. Not all diesel fuel is the same and fuel quality can contribute to moisture issues, performance issues, sludge formation, and clogged filters. Our EDGE family of additives can help resolve some of the common issues associated with moisture and fuel quality issues. Each of our additives has been specifically designed to treat diesel fuel to help optimize performance.