Have you ever asked yourself what the numbers on the oil package mean? Let’s make it short and clear, the numbers stand there for cold and hot viscosity. The first number which is accompanied with the letter W stands for winter. In winter times oil needs to be liquid enough to prevent the grinding of the moving parts! This is very important for people who live in cold climates. The second number stands for tested viscosity on high temperatures. In hot temperatures the oil gets to tick so it is important if you live in hot climates regions to choose oil with bigger second number. Also read the user manual form the car manufacturer for further explanations for the engine usage.

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