KOSTGard® Enviro Heavy Duty Extended Life Coolant/Antifreeze

KOSTGard® Enviro HD ELC is a virgin propylene glycol extended life coolant that contains a proprietary inhibitor system. In heavy-duty diesel applications it can provide a service life of 600,000 miles, with the addition of supplemental coolant additive (SCA) at 300,000 miles. In automobiles this extended life Coolant/Antifreeze will provide a service life in excess of 5 years or 150,000 miles.

KOSTGard® Enviro HD ELC concentrate contains a minimum of 1200 ppm of nitrite to comply with ATA TMC RP 329 and ASTM D 6210 requirements for diesel coolants. It contains no added phosphates, silicates, nitrates or amines. It is a balanced combination of organic and inorganic additives and is compatible with both organic acid long life coolants and conventional inorganic coolants. In addition, our Extended Life Antifreeze will not cause turbidity, precipitation or inhibitor effectiveness reduction when mixed with other carboxylate-based coolants such as ChevronTexaco Extended Life Coolant or Dex-Cool nor with conventional coolants such as Prestone or Zerex. It is ideal for use in initial fills, coolant change-outs or top-offs.

KOSTGard® Enviro HD ELC meets ASTM D 3306 (automotive antifreeze), ASTM D 4985 (heavy duty antifreeze), ASTM D 6210 (fully formulated, pre-charged antifreeze) and TMC of ATA RP 329 performance requirements. It also meets or exceeds the following industry specifications as a concentrate or pre-diluted heavy-duty antifreeze/coolant for propylene glycol based coolants/antifreezes: