What is the fuel consumption of the BMW 523 inline 6-cylinder?
2 Answers
BMW 523 inline 6-cylinder average fuel consumption is 10.5-12.5 liters per 100 kilometers. Here is the relevant introduction: The high-power version of the 523, equipped with a 2.5L inline six-cylinder naturally aspirated engine, delivers a somewhat moderate performance at low RPMs. However, its burst of power during rapid acceleration below 100 km/h is quite satisfying, as verified in subsequent performance tests. Even when the speed exceeds 100 km/h, the BMW 523Li remains energetic, with continuous and powerful mid-to-high-speed acceleration. In the normal D mode, the throttle response is not as sensitive as most Japanese cars, but rather gives a feeling of continuously surging power.
I remember driving a BMW 523 for several years, equipped with the classic inline-six engine. Fuel consumption really depends on how you drive. In congested urban areas, the average can reach 13-15L/100km due to frequent stops and starts at traffic lights. On the highway, maintaining a steady speed, I once achieved as low as 9L/100km, especially during long-distance cruising where it’s even more fuel-efficient. The engine itself is very smooth, but as the car ages, worn spark plugs can increase consumption to 15L/100km, which is normal. Regular maintenance is key—such as replacing the air filter and using full synthetic oil—which can reduce fuel consumption by 1-2L/100km. Driving habits also matter: avoid flooring the accelerator at startup and plan routes in advance to avoid traffic in the city. Overall, a realistic fuel consumption range is 10-12L/100km, but individual experiences vary, so I recommend measuring it a few times to get a clear idea.
