Did you know testing confirms that up to 75% of engine wear occurs during the first 20 minutes of warm up?* When your engine stops, oil drains off critical engine parts, but the intelligent molecules in Castrol GTX MAGNATEC don’t – they form an extra layer of protection during warm up, when your engine needs it most, dramatically reducing engine wear and keeping critical parts up to 4X smoother.* * As tested in the industry Sequence IVA wear test. Castrol GTX MAGNATEC 5W-30 meets a host of licensing requirements and specifications: -API SN -ILSAC GF-5 -dexos 1 – dexos1 is a registered trademark of General Motors -Meets Ford WSS M2C929-A -Meets Ford WSS M2C946-A -Meets engine test requirements of Chrysler MS 6395