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Antifreeze protects your engine from corrosion, prevents the build-up of scale, and aids heat transfer.
Antifreeze, or engine coolant, is an additive that lowers the freezing point of water in your car. This prevents freezing when temperatures plummet so that you can travel smoothly on even the coldest winter days.
On hot days, the coolant prevents your engine from overheating by increasing the boiling temperature of the water in your vehicle.
Without coolant, you risk engine damage – and expensive repairs.
You can buy engine coolant in two forms: ready-mixed or concentrate. The coolant is made from ethylene glycol or propylene glycol.
Check the recommended coolant for your vehicle using our car part finder.
If your antifreeze doesn’t reach the ‘full’ marker on your coolant reservoir when your engine is cold, remove the radiator pressure cap and pour a 50/50 mix of coolant and water to meet the marker.
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