How do I top up my coolant/antifreeze?

Just like checking your oil or your tyre pressure, making sure your car’s coolant/antifreeze is protecting your car as it should be is an important part of maintenance. Without it, you run the risk of overheating since there’s nothing to absorb the heat produced when the car is in use.

Fortnightly check-ups are something we really recommend at Prestone, to see if the coolant/antifreeze needs topping up and also to test if it’s protecting your vehicle.

coolant tank

If you find that you need to top it up, here’s a helpful guide.

  • Start by locating the coolant/antifreeze reservoir; this is usually visible on either side of the engine bay under the bonnet and is identifiable by the brightly coloured liquid inside. When adding Prestone, it is important to ensure the engine has cooled before unscrewing the cap of the expansion tank as the coolant operates at around 90°C. Prestone Coolant/Antifreeze should be added straight into the cooling system through the expansion tank.
  • When adding coolant/antifreeze, it is important to ensure the engine has cooled before unscrewing the cap of the expansion tank as the coolant operates at around 90°C.
  • Prestone Coolant/Antifreeze should be added straight into the cooling system through the expansion tank.
  • After filling with Prestone, make sure that the cap of the expansion tank is replaced and tightened.

Why should I choose Prestone?

Prestone Coolant/Antifreeze has been designed to mix with all other colours of coolant/antifreeze. So if you have previously used another brand of coolant or antifreeze or have bought the vehicle second hand and don’t know the brand currently used, you can use Prestone knowing that it is guaranteed to work without causing any damage. It is also guaranteed for all cars and light duty vehicles, so it’s easy for you to choose Prestone.

So, if you’ve used another brand of coolant or antifreeze, or your vehicle is second hand and you don’t know what was previously used, Prestone gives you peace of mind since it works on all cars and light duty vehicles without causing any damage.

Prestone’s scientists test our products rigorously – we even tested our coolant/antifreeze in the Sahara – so you can be sure it will perform for you on UK roads all year round.

If you’re just topping up your coolant/antifreeze, the Prestone Ready to Use formula is easy to use as you can add it straight out of the bottle. If you’re flushing your cooling system, you can read more information on this here. You might consider using Prestone Coolant/Antifreeze Concentrate after draining and flushing – read more about the product here.

For high-performance coolant/antifreeze that will never let you down, you can count on Prestone. Tested in extreme conditions to guarantee all-year-round protection for your car, find out more about our high-quality products on the Prestone homepage right here.

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