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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. 10W-30

SAE 10w-30 engine oil

If your car needs SAE 10W-30 engine oil, Castrol offers a range of options, all of which flow like 10 Weight oil when cold, and 30 Weight oil at full engine operating temperature.

Car engine and oil next to text reading 10W-30

What's the best 10w30 oil for your engine?

Castrol offers a broad range of 10W-30 engine oils, including premium full synthetic, high mileage and conventional, meeting the needs of both drivers and vehicle manufacturers.


What is 10W-30 oil recommended for?

  • Castrol EDGE, an advanced full synthetic 10W-30 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 10W-30 that offers superior wear protection.
  • If your car has over 75,000 miles on the odometer, Castrol GTX High Mileage 10W-30 can help protect your emission system while helping to extend the life of your engine.
  • Castrol GTX 10W-30 Double-Action formula has been engineered to clean away old sludge while preventing new sludge formation.