How many liters of engine oil should be added to an Audi 2.0T?

[BarrettLynn]

Audi 2.0T requires 4.5 liters of engine oil. The functions of engine oil are: 1. To reduce wear between pistons and cylinders, main shafts and bearing bushes, providing lubrication; 2. To assist in cooling the internal parts of the engine; 3. To clean carbon deposits, sludge, and metal particle impurities from engine components; 4. To minimize gas leakage and prevent external pollutants from entering; 5. To cushion and absorb shocks from pistons, piston chips, connecting rods, and crankshaft bearings. Taking the Audi A4L as an example, it is a mid-size car with dimensions of 4858mm in length, 1847mm in width, and 1439mm in height, a wheelbase of 2908mm, and a body weight of 1610kg.