Castrol Edge 5W 30 LL 4L Option:4L When you need a job When you need a job done quickly without sacrificing quality preventing the main bolt being retracted by a credit card The inside handle can be deadlocked by an anti clockwise turn of the key from the inside so securing the lock against forced entry The bolt can be held in the withdrawn position (only) with the use of the snib feature This product is ideal for solid and glass paneled doors An ergonomic internal locking handle which offers added security against forced entry protecting your engine Reduces power robbing friction across engine speeds and conditions Independently tested at the highest standards for proven performance Recommended by world leading car manufacturers Protects the engine for the entire drain interval even under extreme pressure Transforms to be strongest when the pressure is highest