Dedicated diesel technology with Intelligent Molecules that cling to critical engine parts, providing an extra layer of protection during the crucial warm-up period. CASTROL MAGNATEC DIESEL 15W-40 unique formulation protects from the moment you start.
This oil is specially engineered to prevent the harmful build-up of sludge, reduce oil deposits and provide daily protection for your engine. Suitable for cars and light commercial vehicles that specify API CH-4 or earlier.
GTX ULTRACLEAN 15W-40 with Synthetic Technology provides superior sludge protection to help extend the life of your engine. Its unique Double Action formula cleans away old sludge, and protects against new sludge formation, giving you more control over today´s challenging conditions.