Superior protection against sludge

Castrol GTX 10W-40 A3/B4 is specially developed to prevent sludge build-up in your engine. Sludge is a tar-like substance that accumulates in the engine and negatively affects performance. Thanks to the advanced formula of Castrol GTX, your engine stays up to 50% cleaner than industry standards require.

Suitable for various engines

This semi-synthetic engine oil is suitable for both petrol and diesel engines. It meets the specifications ACEA A3/B4 and API SN, making it widely applicable for different vehicles.

Excellent thermal stability

Castrol GTX 10W-40 A3/B4 offers advanced protection against viscosity loss and thermal breakdown. This means the oil retains its lubricating properties, even under high temperatures and heavy loads.

Extends the life of your engine

By combining high-quality base oils and anti-wear additives, this engine oil helps extend the life of your engine. It protects against wear and keeps engine parts clean, resulting in smoother operation.

Specifications and approvals

• ACEA : A3/B4
• API : SN
• Mercedes-Benz approval : 229.1
• Volkswagen : 501 01 / 505 00
• Renault : RN 0700 / RN 0710
• Fiat : 9.55535-D2 / 9.55535-G2

Applications

This engine oil is ideal for vehicles for which a 10W-40 oil with the above specifications is recommended. Always consult your car's manual to check if this oil is suitable for your engine.