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

  1. Home
  2. MOTOR OIL & FLUIDS
  3. ENGINE OILS
  4. MOTOR OIL VISCOSITY GRADES
  5. 15W-40

15W-40

15W-40 is a very common viscosity grade for diesel engine oil. Choose the right oil for your engine.

THE RIGHT 15W-40 OIL FOR YOUR ENGINE

Castrol MAGNATEC DIESEL is a semi synthetic engine oil that combines dedicated diesel technology with DUALOCK Molecules cling to critical engine parts and lock together, forming a powerful force field of protection that dramatically reduces both warm-up and stop-start wear by 50%*.

 

Non-stop protection from every start.