10W-40 Oil

Choose the right 10W-40 oil for your engine.


Castrol MAGNATEC’s intelligent molecules cling to your engine and protect it when it’s needed most – during warm-up when up to 75% of engine wear occurs. Castrol MAGNATEC’s unique formulation protects from the start, dramatically reducing* engine wear to keep it running smoothly. 

Castrol MAGNATEC – Instant Protection From The Moment You Start.
Castrol MAGNATEC 10W-40 provides instant protection from the moment you start.

Castrol MAGNATEC 10W-40's unique formulation protects from the moment you start, dramatically reducing* engine wear. Castrol MAGNATEC’s Intelligent Molecules cling to metal surfaces to make engine parts more resistant to wear and are combined with synthetic technology to provide increased protection in high and low temperature applications, providing continuous protection for all driving conditions, styles and temperatures. Now with ultra refined molecules for protection you can see, hear and feel.
* As tested against the industry Sequence IVA wear test.


Castrol MAGNATEC 10W-40 is suitable for petrol engines, direct and indirect injection diesel engines, LPG and CNG cars, light commercial vehicles and 4WDs.


Meets and exceeds API SN/CF, ACEA A3/B3, A3/B4 requirements.