6 L Engine Oil castrol edge TITANIUM0w30 Audi VW BMW Mercedes Longlife

Castrol's fully synthetic 0W-30 engine oil is designed to flow like a 0 viscosity oil in winter temperature conditions and behave like a 30 viscosity oil when the engine reaches normal operating temperature. This guarantees a high level of engine protection from the moment it is turned on.

If you think the "W" in viscometric ratings stands for Weight, you're making a common mistake. The W actually stands for Winter. This is because 0W-30 motor oil is formulated to flow like a 0-viscosity oil at cold temperatures and provide the protection of a 30-viscosity oil when the engine reaches normal operating temperature.