Purpose and Specifications

Castrol Magnatec 5W-30 C3 4L is a fully synthetic engine oil that clings like a magnet to key engine parts for 50% better wear protection, especially during cold starts when up to 75% of engine wear happens. Its 5W flows easily in cold temps down to -30°C for quick protection, while the 30 grade stays thick up to 150°C for hot running engines. Perfect for modern petrol and diesel cars with DPF or catalytic converters from brands like VW, BMW, Mercedes, Toyota, and more.

• Protects valvetrain, pistons, bearings, and timing chain from damage
• Keeps engine clean by managing deposits and sludge
• Improves fuel efficiency in stop-start city driving
• 4L size suits most car oil changes

When to Use / Replace?

Use this oil in vehicles needing ACEA C3 spec for low-ash formulas that won't clog exhaust filters. Ideal for daily commutes, short trips, or heavy loads where engines face high stress. Replace every 10,000-15,000 km or 12 months, whichever comes first, to maintain peak protection. Shelf life is 5 years unopened in cool, dry storage.

FAQ

Is Castrol Magnatec 5W-30 C3 good for my diesel SUV?
Yes, it delivers extra protection for loaded SUVs and DPF-equipped diesels, with 50% better heavy load wear resistance.

Can I use it in cold winters?
Absolutely, the 5W rating ensures fast flow at -30°C, reducing startup wear.

How often should I change it?
Every 10,000-15,000 km or yearly, check your owner's manual for exact intervals.