The intelligent molecules in Castrol GTX MAGNATEC SAE 5W-30 are what set it apart from other engine oils.

These specialized molecular components cling to the engine throughout all driving conditions, even when the engine is off. When the engine stops, oil drains back to the sump, but the intelligent molecules in Castrol GTX MAGNATEC don't. They cling to critical engine parts like a magnet, providing an extra layer of protection from the start and throughout warm-up.

• Dramatically reduce engine wear
• Leave critical engine parts 4X smoother
• Add a layer of protection during warm-up and beyond
• Cling to critical engine parts when the oil drains down