Suggestions
View all results

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

  1. HOME
  2. CAR ENGINE OIL AND FLUIDS
  3. ENGINE OILS
  4. ENGINE OIL VISCOSITY GRADES
  5. 5W-40

5W-40

If your car requires a 5W-40 engine oil, Castrol offers a full range of options to meet the needs of every driver and vehicle manufacturer.

5W-40

CHOOSING the right 5W-40 oil for your engine.

Full synthetic 5W-40 engine oil is formulated to flow like 5 Weight oil from a cold start in winter temperatures and like 40 Weight oil once the engine has reached its normal operating temperature.

There are two things you need to know to find the right oil for your vehicle 1) the viscosity, 2) the manufacture specification requirements. The products on this page are all 5W-40 viscosity and also show the manufacturer specifications details. 

 

To find the product you need always consult your vehicle handbook or use our Oil Finder tool.