How many liters of engine oil does a BMW 5 Series need?

[Elliana]

BMW 5 Series requires 4 liters of engine oil. If too much engine oil is added to the BMW 5 Series, it will increase the amount of oil splashed onto the cylinder walls by the rotating crankshaft and connecting rods, significantly increasing the amount of oil entering the combustion chamber. This leads to more carbon deposits in the combustion chamber, increases the resistance to piston movement, and reduces engine power. As more oil enters the combustion chamber, exhaust emissions worsen, affecting the lifespan of the three-way catalytic converter, and in severe cases, may damage it. The BMW 5 Series has dimensions of 5106mm in length, 1868mm in width, and 1500mm in height, with a wheelbase of 3105mm, and the engine model is B48B20C.