Semi synthetic or part synthetic oils are a blend of both mineral and synthetic oils. They provide better performance, protection and fuel economy than mineral oils, but not as good as a full synthetic.
Castrol EDGE 25W-50 with Fluid TITANIUM is a race bred oil specially formulated for modified engines, push-rod technology, street machines, big bore competition engines, naturally aspirated, supercharged or turbocharged.
Castrol GTX ULTRACLEAN 10W-30, our cleanest GTX ever, can not only extend the life of your engine but provides you with the highest grading of fuel economy yet. The synthetic technology cleans sludge and dirt 50% better than industry standards.
Castrol 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.
Castrol MAGNATEC 10W-40 provides instant protection from the moment you start. Up to 75% of engine wear happens while your engine warms up. When the engine stops oil drains off critical engine parts, however Castrol MAGNATEC's intelligent molecules don’t.
Castrol MAGNATEC DIESEL combines 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 STOP-START 10W-30 gives significantly less wear in stop-start operation. Castrol MAGNATEC STOP-START 10W-30 has intelligent molecules that cling, and form a self-healing layer so it’s always ready to protect at each of the critical stages of stop-start driving.