100032PY. Designed for year-round use, this fuel treatment fights sludge formation and disperses existing sludge in fuel tanks. It also inhibits bacteria and fungus, while cleaning dirty injectors and enhancing fuel lubricity/stability. It prevents corrosion, too, as it prepares fuel tanks for winter conditions and storage. And it conditions diesel fuels to burn cleaner and more completely. Plus regular use reduces lube oil dilution and contamination. Biodiesel and ULSD compliant. 32 oz. 12/Case.