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IT'S MORE THAN JUST OIL. IT'S LIQUID ENGINEERING.

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  2. MOTOR OIL & FLUIDS
  3. ENGINE OILS
  4. MOTOR OIL VISCOSITY GRADES
  5. 5W-20

5w-20 Motor Oil

If your car requires an SAE 5W-20 engine oil, Castrol offers a full range of options to meet the needs of every driver and vehicle manufacturer.

Image of a car engine and oil next to text reading 5W-20

What's the best 5W-20 oil for your engine?

Whether your preference is for the performance of a full synthetic or the daily protection of a synthetic blend Castrol's range of 5W-20 viscosity motor oils flow like a 5 weight oil from a cold start in winter but like a 20 weight oil once the engine warms and the oil reaches optimal operating temperature.

 

What's the best 5W-20 oil?

  • Castrol EDGE, an advanced full synthetic 5W-20 motor oil, is Castrol's strongest oil and a great option for those who want the very best for their car.
  • Castrol GTX MAGNATEC is a premium full synthetic 5W-20 that offers superior wear protection.
  • If your car has over 75,000 miles on the odometer, Castrol GTX High Mileage 5W-20 can help protect your emission system while helping to extend the life of your engine.
  • A Castrol GTX Ultraclean 5W-20 Double-Action formula has been engineered to clean away old sludge while preventing new sludge formation. No oil keeps engines cleaner.