Castrol 10W40 Oil

The Castrol Magnatec 10W40 A3 B4 Oil clings to the engines surface like a magnet providing constant protection even when the engine is switched off, providing critical engine protection during start and warm-up periods.

Every time you start your car it takes most oils 10 minutes to work effectively, because the oil cannot protect properly until it reaches a critical temperature. Castrol Magnatec 10W40 is different as it gets to work straight away by virtue of a unique synthetic ester that clings to the engine like a magnet.