Passat 2.0 manual transmission consumes oil for several reasons.

Passat 2.0 uses MFI multi-point injection engine, and the technology of this engine is quite mature. My personal experience is low fuel consumption. If a person drives a long distance, he basically keeps a constant speed of100-10, and the fuel consumption is at 6 o'clock, but it is almost 8.5 in urban areas, and the fuel consumption is low year-on-year.

As for what you said, it's always more fuel efficient than the same model car. What my friend said before is also reasonable. Body weight and driving habits will have an impact, but it still depends on what brand of car you are comparing. You know, Laopa's body steel plate can be removed and split into two separate Japanese and Korean car shells!

As for what you said, "the engine sound decreases gradually when refueling in the middle", I have never met this and I don't know the situation. However, if your car is driving in the city for a long time, it is suggested that you clean the throttle every few thousand kilometers, which may be helpful to improve acceleration and reduce fuel consumption.