Engine Oil Viscosity/Quality
WARNING: This page does not describe the selected car, but rather 180 other vehicles, including the 2014 BMW i8, 2014 BMW i3, 2014 BMW Z4, 2014 BMW X6 M, and 2014 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.
The use of oil with the wrong viscosity rating for operating conditions can cause high oil consumption. Check the Owner's Manual to determine the proper viscosity for prevailing conditions.