Coolant

All you need to know about coolant and antifreeze for your car

Coolant

The colder the weather gets the more drivers should consider the coolant in their car. This is because engines need liquid circulating through them to keep cool. But freezing weather can turn that fluid to ice, rendering it useless.

Coolant is vital because when a car is going at speed, pistons travel at around 40mph, shafts whizz round and bearings are under extreme pressure causing heat to build up. To stop this becoming so intense that metal parts begin welding themselves together, coolant is used. Here’s all you need to know about it.

Is coolant the same as antifreeze?

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Expert advice: what to do with an overheating car

Overheating

Overheating cars used to be a familiar sight, stopped at the road side, bonnet up, steam pouring from the engine. Thankfully it’s not so common now as cars in general have become more robust.

But overheating – when the engine’s water literally boils – does occur. Here we look at why, what you can do if your car does overheat, and offer some tips on how to prevent it.

Why do cars need water?

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