Is the Audi A4 prone to excessive oil consumption?
1 Answers
Audi A4 does not have severe oil consumption issues, but compared to Japanese cars, its oil loss is slightly higher. The reason lies in the microstructure of the Audi engine cylinder walls, which under a microscope appear as a honeycomb pattern. Each tiny pore in this structure retains a small amount of oil, providing better lubrication for piston movement than flat cylinder walls. However, this honeycomb design holds more oil than flat walls, resulting in higher oil consumption. Here's additional information: True oil burning typically exhibits the following symptoms: If it occurs during cold starts, you'll notice thick blue smoke from the exhaust pipe during the first morning ignition. During acceleration, heavy blue smoke emerges when rapidly pressing the throttle either while driving or in neutral gear. In severe cases, blue smoke may even be visible in the side mirror reflection during hard acceleration. Engine idling conditions: China's highway speed limit is 120 km/h, while urban driving typically ranges between 40-60 km/h with frequent traffic congestion. Prolonged low-speed driving and frequent stops at traffic lights keep the engine idling for extended periods. This operating environment causes more oil to remain in the cylinder pores, leading to increased oil burning. Similar to how highway driving consumes less fuel than city driving. From a technical perspective, this oil consumption mechanism actually provides effective protection for the engine cylinder walls.