Alpine Blue Antifreeze Concentrate is a monoethylene glycol (MEG) based coolant using Inorganic Acid Technology (IAT). Supplied as a concentrate, it must be diluted with distilled or deionised water before use. It provides frost protection and corrosion resistance for classic Austin Healey cooling systems.
This formulation exceeds BS 6580:2010 and is nitrate, amine and phosphate free.
Yes. This coolant is suitable for all Austin Healey models including BN1–BJ8 and Sprite models, provided it is mixed correctly.
Designed for conventional cooling systems using cast iron blocks, aluminium cylinder heads and copper/brass radiators. Suitable for both four-cylinder and six-cylinder engines.
Not pre-mixed. Dilution is required before filling.
Typical dilution guide:
Drain and flush the cooling system before refilling. Always mix with distilled or deionised water prior to filling.
Check hoses, thermostat and pressure cap during refill. Replace coolant every two years to maintain corrosion protection.
Do not mix with OAT or long-life coolants.
For owners running traditional copper/brass radiators and period-style cooling systems, IAT blue antifreeze remains the correct type. It offers predictable protection and is easily serviceable at regular intervals.
For long-life sealed systems, see 4life 10 Year Coolant.
