Solution for BMW 316 Burning Engine Oil?

[OCassidy]

For the BMW 316 burning engine oil issue, it is necessary to replace the piston rings and engine oil or the valve stem seals. Piston Rings and Engine Oil: Piston rings are divided into compression rings and oil rings, both embedded inside the piston grooves. The compression rings function to seal the combustible gas mixture in the combustion chamber, while the oil rings are used to scrape off the engine oil from the cylinder walls. Excessive wear, breakage, or damage to the piston rings can lead to a series of fault symptoms, such as burning engine oil, low cylinder pressure, and decreased power. Once the piston rings are excessively worn, the gap between them and the cylinder walls becomes too large, resulting in the burning engine oil issue. Valve Stem Seals: Valve stem seals prevent engine oil from entering the combustion chamber. The main method to determine if the valve stem seals are aged or damaged is to observe if large amounts of blue smoke emerge from the exhaust pipe when the car is not fully warmed up, but the symptom disappears after the car is warmed up. This is mostly caused by aged or damaged valve stem seals. During a cold start, the low temperature makes the aged valve stem seals harder, preventing them from sealing completely, allowing engine oil to leak into the combustion chamber from the valves, thus causing the burning engine oil phenomenon.