How much engine oil should be added to a Mercedes-Benz E200?

[Keith]

Approximately 4.5 liters. The exact amount should be determined based on the oil dipstick. 1. The meaning of "OW" in engine oil: The "OW" at the front indicates that the smaller the number, the better the low-temperature fluidity of the oil, representing the lower environmental temperature it can be used in and the better protection it provides for the engine during cold starts. For example, 5w means the minimum temperature is -30 degrees Celsius, 0w is -35 degrees, and 10w is -25 degrees. 2. The meaning of the numbers: The number at the back represents the viscosity index of the oil at high temperatures. The higher the number, the higher the viscosity, which provides better protection for the engine but consumes more fuel; the opposite is also true. Each car has different viscosity requirements. For example, Japanese cars generally use 30, while German cars mostly use 40 because it meets Volkswagen's certification standards.