I've read quite a few posts about the oil separator problem, but I've not seen any information about whether or not this can occur on a diesel.

Just yesterday I bought a 2010 X5 xDrive35D, and it will be delivered next month. We live in Utah, and have a heated garage, but it sometimes gets pretty cold here. Rarely below 10 F, but sometimes below 0 F. Our shortest drive would be 15 minutes or so one way, down, then up the mountain.

So, is the diesel engine subject to the OS problem? Will the sort of driving we do ... perhaps to go out for dinner on a cold night ... be a problem?

Thanks ... and wish me luck with my new car!