This is the cheapest I've seen in a while for the 4 litre Castrol Magnatec 10W-40. Store stock only (free Click and Collect available) and at this price they'll sell out fast, so get yours now if you want it. Max 2 per customer.

• 4 Litre
• 10W-40
• API SN/CF
• ACEA A3/B4
• Semi Synthetic
• Intelligent molecules dramatically reduce engine wear at start up
• Protects during all driving conditions, styles & temperatures