Which is better, Castrol Supreme Care or Shell Extraordinary Heineken?

You can't say which is better. Different cars use different lubricants, as long as you choose well and suit your car.

What brand of lubricating oil can make the vehicle run normally depends on the owner's ability to pay attention to lubricating oil.

Shell lubricants focus on cleaning ability. For some car owners who value the cleaning ability of oil, they can try Shell lubricating oil, but this does not mean that other vehicles are not suitable for Shell lubricating oil.

The most outstanding advantage of Castrol engine oil is that its wear resistance is better than other engine oils, and the effect of reducing engine noise is also good.

The disadvantage of Castrol engine oil is that its cleaning ability is not as good as that of Shell and Mobil products of the same grade, and the engine oil decays faster.

Among the viscosity grades of 5W-30, Shell Extraordinary Heineken engine oil has the best cold start performance, while Castrol magnetic oil is poor.

Among the viscosity grades of 0W-40, Castrol Magnetic Protection and Shell Heineken Engine Oil have the best cold start performance.

Summary: When choosing engine oil, every car owner should refer to his own use demand and environment, because the engine parameters of each car are very different and the demand for engine oil is different, so you can also refer to how car owners of the same model choose engine oil.