Purpose and Specifications

Castrol Magnatec Professional OE 5W-40 4L is a fully synthetic engine oil that clings to metal parts like a magnet for instant protection from the first turn of the key. Its intelligent molecules form a tough layer on critical components like pistons, valvetrain, and timing chains, cutting engine wear by up to 50% during cold starts and warm-up when most damage happens.

This 5W-40 oil flows easily in cold weather down to -30°C for quick starts, while staying strong up to 150°C in hot highway driving. It supports extended drain intervals up to 15,000 km or 12 months, keeps engines clean to boost fuel efficiency, and works with emission systems like DPF for cleaner running.

• Instant protection reduces wear by 50% vs. standard tests
• Perfect for petrol and diesel cars, 4x4s, and light trucks
• 4 liter pack suits most passenger vehicles

When to Use / Replace?

Use this oil in modern engines needing ACEA C3 or API SN specs, especially for stop-start city drives, long highway trips, or extreme temps. Swap it every 10,000-15,000 km or 12 months – or sooner if towing heavy loads or in dusty conditions. Shelf life is 5 years unopened in cool, dry storage.

FAQ

Can I use it after mineral oil? Yes, no special flush needed – it mixes fine and protects right away.

Does it help my DPF last longer? Absolutely, its low-ash formula keeps filters clean for better performance and fuel savings.

Ideal for cold winters? Yes, flows fast at -30°C to protect during tough starts without thinning out.