What is the normal operating oil temperature?

[junkyard dogg]

Mine stays around 230 all the time. Maybe 240 after a hard pull.

At what point does it get dangerous?

[BMW335i07]

Feel the same measurements on mines sometimes even 250 when hitting high speeds for a while

[JinMao]

Mine stays around 230 all the time. Maybe 240 after a hard pull. At what point does it get dangerous?

I was running about there on a 2011 335i, on the high end. Usually ran around 225 until I drove hard, which was daily Often needed top top off the oil after about 2k miles.

[lyonsd]

Mine stays around 230 all the time. Maybe 240 after a hard pull.

At what point does it get dangerous?

300 and it will go into limp mode.

Normal for me is 250. I have a '11 E92 N55. I don't think I have a factory oil cooler.

My car's performance seems to be influenced a lot by temperature. At the drag strip, running 250 degrees, I run an average of 14.0 @ 100. But if I let the car cool for an hour of so, I can knock off a couple tenths and add a mph.

At the track, at around 250, I can hit 135+ mph (speedo indicated) on the straight portion. When if gets hotter, I can't go past 100 on that straight. And, of course, when it hits 300, limp mode.

[pauljcl]

Check your manual, which gives 'normal' operating temps. Mine 2011 335i is up to 310F

[Trhaworth]

Don't worry about it. For whatever reason they just run hotter than most cars. Very normal of the 335. I have an 07 e90. Runs around 230-240 typically. On a hot day and me driving hard it will get up to 250.