[pxj]

May I ask how to reduce the oil and coolant temperatures? My car now has an oil and coolant temperature of up to 110 degrees Celsius. My car is a 2019 F30 and uses a B48 engine (not a B48TU engine)

[Billfitz]

110C/230F is normal. The car runs that hot on the highway for maximum efficiency. It will run cooler in town to minimize the potential for pre-ignition when accelerating.

[pxj]

Originally Posted by Billfitz

110C/230F is normal. The car runs that hot on the highway for maximum efficiency. It will run cooler in town to minimize the potential for pre-ignition when accelerating.

Thank you! But I feel that higher temperatures can lead to knock and ignition timing being pulled.

[Billfitz]

Read my post again. The car adjusts the temperature as required.

[pxj]

Originally Posted by Billfitz

Read my post again. The car adjusts the temperature as required.

Thank you, I understand.

[pxj]

Originally Posted by Billfitz

110C/230F is normal. The car runs that hot on the highway for maximum efficiency. It will run cooler in town to minimize the potential for pre-ignition when accelerating.

The 4th cylinder experiences ignition timing being pulled, but the other three cylinders have good ignition timing

My car has been flash with BM3 program.
https://www.bootmod3.net/log?id=6545...66d258c90496c7
2019 F30 B48 GEN1