Samochód osobowy jadący po górskiej drodze/Passenger car driving on mountain road

Why is coolant so important?

Whether your priority is to keep fuel costs low or emissions to a minimum, keeping your car in top condition can be one of the best ways to meet your goals. Alongside engine oils and transmission fluids, the coolant you choose can have a big say in the performance of your engine, by helping to:

  • Transfer heat away from your engine, regulating engine temperature and maximising engine performance
  • Protect your cooling system from corrosion, scaling or deposits, and the long-term damage they can cause
  • Maintain consistent performance over the lifetime of your vehicle, so you can run your car for longer

Using a low-quality coolant on the other hand, can cause your cooling system to rust or your engine to overheat – both of which can risk your safety on the road or your finances in the workshop. This is especially important if you own a newer vehicle, since the higher combustion temperatures and complex cooling systems present in modern engines demand high-quality coolant to protect from damage and extend service life.

Why choose a Shell coolant?

As the world’s number-one lubricant supplier for 15 years running, Shell has a long history of engine fluid expertise to rely on.1 Our technology leadership has seen us build strong relationships with global manufacturers including BMW, Hyundai and Volkswagen, developing high-quality coolant that exceeds the most stringent performance requirements of modern engines – from passenger cars to heavy-duty machinery.

Uśmiechnięty mężczyzna siedzący za kierownicą samochodu osobowego

The four key benefits of Shell Coolant

  • Enhanced heat transfer: Overheating can cause both car parts and oil to deteriorate, exposing your vehicle to serious damage. By using Shell Coolant with Organic Additive Technology (OAT), you can prevent your radiator from overheating, keeping your car on the road and out of the workshop.
  • Excellent corrosion protection: The heat, pressure and water that your car is exposed to creates the perfect conditions for corrosion. But because the corrosion protection of Shell Coolant is only provided where it’s needed most, important anti-corrosion additives are depleted much more slowly than in conventional coolant – providing ongoing protection that meets or exceeds industry standards and manufacturer specifications.2
  • Long service life: While conventional coolant sees its anti-corrosion properties reduced after a limited distance, Shell Coolant can retain these properties for five years or 250,000 km in the case of passenger vehicles. That means you can spend less money on maintenance and less time on topping up, while potentially keeping your car running for longer.
  • Superior deposit protection: Coolants come in two basic forms – as ready to use (RTU) solutions and concentrates which need to be diluted with water before use. If your coolant is mixed with hard water, the high mineral content can cause scale deposits to form on the hottest parts of your engine.3  If left unchecked, this can lead to inefficient heat transfer, corrosion, and ultimately, engine damage. To guard against this, Shell Coolant LongLife Concentrate is compatible with hard water up to 500 ppm,4  reducing the likelihood of deposits forming.5

1Kline & Company. “Global Lubricants: Market Analysis and Assessment.” 2021.
2According to I Industry Standard Test Results: ASTM D3306, ASTM D4340, ASTM D1384, ASTM D2570
3For optimal performance and protection, we recommend to always dilute Shell Coolant concentrates with distilled or deionised water.
4Internal Shell Analysis, , Technical Data Sheet – Shell Coolant LongLife Concentrate
5According to Industry Standard Test Results: ASTM D2809

Choose the right Shell Coolant

Shell Coolant Extra

Shell Coolant Extra

Suitable for modern engines, Shell Coolant Extra meets the specifications for a large number of passenger cars thanks to its excellent protection qualities.

Shell Coolant Longlife

Shell Coolant LongLife

With better stability in high temperature, Shell Coolant LongLife helps protect against the formation of sludge, scaling and deposits over 5 years or 250,000km.

Shell Coolant Longlife Plus

Shell Coolant LongLife Plus

Specifically recommended for hi-tech (Euro VI) engines, Shell Coolant LongLife Plus delivers excellent corrosion protection and an extended working life.

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