X5 BMW Service Recommendation Changes?

[JCL]

Originally Posted by Penguin

My X5 is used almost exclusively on the highway, with minimal in-town stop-and-go driving, e.g., it is beginning to look like the CBS thinks high-speed highway driving is harder on the diesel oil than in-town stop-and-go driving.

How are you comparing highway driving service intervals to in-town driving service intervals in your example? Are you comparing the 9000 mile interval to previous experience with a gasoline engine?

It seems to me more like the CBS thinks the diesel engine needs oil changes more frequently than the gasoline engine models. If so, and given the high mileage diesel owners outside North America seem to get between oil changes, it may be related to North American diesel fuel quality.

Let us know if you find out what the vehicle service light trigger is, as my 535 is also calling for a vehicle service at other than oil change intervals.