A high-performance ethylene glycol-based engine coolant which employs Organic Acid Inhibitor Technology. It is a pre-diluted (with high-quality water) product and should only be used as a complete engine coolant.

Compatible with most other ethylene glycol-based coolants, but for optimum performance and durability, we recommend that before using KOOL-GUARD XL -38 in systems previously filled with traditional coolant the cooling system is drained and flushed with clean water before filling with KOOL-GUARD XL -38

• Free from nitrites, amines, phosphates, borates and silicates
  
• When used at the recommended concentrations, it provides long-lasting corrosion protection for a minimum of 5 years, or 250,000KM (500,000KM in commercial vehicles)
  
• It is suitable for use in all vehicles
  
• Unlike traditional coolants that employ inorganic inhibitors, KOOL-GUARD XL -38 has excellent hard water stability and very low inhibitor depletion rates.