Aztec Coolspec Supreme OAT Long Life Antifreeze & Coolant Concentrate 20L

Designed for a wide range of cooling systems, it is suitable for cars, motorcycles, vans, commercial vehicles, agricultural vehicles and selected industrial applications.

It provides long-lasting corrosion protection for engine materials including aluminium and ferrous metals, while also offering excellent thermal performance and hard-water stability.

Key Benefits

• Long-life OAT antifreeze and coolant concentrate
• 2-EHA free formulation
• Provides effective corrosion protection for aluminium and ferrous metals
• Compatible with rubber and plastics used in cooling systems
• Excellent anti-foaming characteristics
• Strong thermal performance for effective engine cooling
• Excellent hard-water stability
• Very low inhibitor depletion rates
• Suitable for internal combustion engines
• Suitable for hybrid vehicles
• Suitable for indirect cooling systems in battery electric vehicles
• Free from nitrites, amines, phosphates, borates and silicates

Mixing / Dilution

For satisfactory corrosion protection, a minimum 33% concentration is recommended, equivalent to approximately 1 part antifreeze to 2 parts water.

Important note

As this is a concentrate, it should be diluted before use unless the vehicle manufacturer specifies otherwise.