Is It Normal for BMW 5 Series Engine Oil Temperature to Reach 120?

[McJackson]

For the BMW 5 Series, an oil temperature within 120°C is considered appropriate, while exceeding 120°C is abnormal. Under normal circumstances, the working temperature of the engine oil in a BMW 5 Series typically ranges between 70°C and 90°C. However, during aggressive driving, as the engine operates under high load, the temperature may rise slightly, reaching around 100°C to 110°C. Below is an introduction to the BMW 5 Series oil temperature: 1. High engine coolant temperature: This is a fault phenomenon caused by increased pressure inside the coolant pipes due to high engine coolant temperature. In fact, apart from high coolant temperature, the engine oil can also experience high temperature issues. This is closely related to the antifreeze. 2. Excessive antifreeze temperature: High antifreeze temperature can also elevate the oil temperature (oil temperature is higher than coolant temperature). When the oil temperature is excessively high (coolant temperature also rises, reducing heat dissipation), the thermal stability of the oil under high temperatures is severely tested. This is why some oils become thinner at high temperatures, leading to oil burning phenomena.