How Many Liters of Engine Oil Does a BMW 6 Series Need?
2 Answers
BMW 6 Series requires 5 liters of engine oil. The role of engine oil: Regularly changing engine oil is essential for protecting the engine, as engine oil not only lubricates the engine but also performs tasks such as cleaning, sealing, corrosion prevention, and aiding in cooling. Therefore, oil changes become a crucial aspect of vehicle maintenance. About the numbers: The 'W' stands for WINTER. The number before the 'W' indicates the oil's flow performance at low temperatures—the smaller the number, the better the starting performance in cold conditions. The number after the 'W' represents the oil's stability at high temperatures (i.e., its resistance to thinning)—the larger the number, the better the oil's high-temperature stability.
I've owned a BMW 6 Series for several years, taking my 640i as an example, the oil capacity is generally around 6 to 7 liters. This depends on the year and model, for instance, older models might require less, while newer ones a bit more. Every time I go to the 4S shop for maintenance, they always fill it up sufficiently, but when adding oil myself, I have to be careful: first, use the dipstick to check the oil level—if it's at the minimum mark, add half a liter; slowly pour in new oil to prevent overflow. Adding too much can burden the engine and increase fuel consumption; too little can lead to higher temperatures and potential damage to parts. Remember to check or change the oil every 5,000 kilometers. Using high-quality synthetic oil can make the car run smoother and save money in the long run. The car manual has detailed instructions—don't be lazy, take a look, safety first.
