10w50意思

"10w50" is a type of motor oil, and the "w" stands for winter. The number before the "w" (10) represents the oil's viscosity or thickness at low temperatures, while the number after the "w" (50) represents its viscosity at high temperatures.

Oils with a lower number before the "w" are thinner and flow more easily when cold, which is important for starting your engine in cold weather. Oils with a higher number after the "w" are thicker and provide better protection against wear when the engine is hot and under load.

The specific grade of oil you need for your vehicle will depend on your vehicle's make and model, as well as the climate you live in. It's always a good idea to check your vehicle's owner's manual to see what type of oil it requires.