G11 concentrate that protects your cooling system all year round.
IRIS G11 antifreeze concentrate -60C in a 5 L pack is a blue engine coolant fluid that you dilute with distilled water to the protection level you need. The 5 L bottle covers a complete drain-and-fill of the cooling system on most passenger cars. It is a concentrate and is not intended to be poured in undiluted.
Concentrate rated down to -60 °C
IRIS G11 antifreeze is a concentrate, so you mix it with distilled water to reach the freeze protection you want. That lets you set the ratio yourself: richer mix for harsh cold, standard proportion for a mild winter.
Blue G11 colour for easy identification
The blue colour of IRIS G11 marks the fluid type and makes it easy to read the level in the expansion tank or spot a leak. G11 is the classic specification used on many petrol and diesel engines — always check what your car's service manual requires.
5 L pack for a full system fill
The 5 L bottle of IRIS G11 antifreeze is sized for a complete coolant change rather than a small top-up. Whatever is left stays sealed in the bottle for the next service.