Coolant

Coolant circulates through the radiator and engine to keep the operating temperature under control, preventing overheating and corrosion inside the cooling circuit. A good antifreeze also protects against freezing in winter and boiling in summer.

Here you find Arexons and Castrol products: ready-to-use or concentrated coolants in green, red and yellow, plus radiator descalers and protective treatments. Pick the right one by checking your owner's manual or matching the colour and type already in the circuit, and by the alloy used in the radiator, aluminium or copper.