DIESEL WATER WETTER 443ML Designed for heavy-duty diesel engines which use more than 33% antifreeze or a supplemental corrosion package. Similar properties and benefits to regular WaterWetter®, but lacks rust and corrosion inhibitors. Diesel road cars and light DIESEL WATER WETTER 443ML Designed for heavy-duty diesel engines which use more than 33% antifreeze or a supplemental corrosion package. Similar properties and benefits to regular WaterWetter®, but lacks rust and corrosion inhibitors. Diesel road cars and light trucks (equipped with Cummins, Duramax and PowerStroke engines) should use regular WaterWetter® to ensure proper rust and corrosion protection. Typical diesel commercial vehicle requires one bottle, treats up to 15 gallons. Contains no ethylene glycol.