The big Opel-comminde I’m actually out of the Mercedes camp and therefore I don’t have too much idea of Opel’s consumption, because it’s about the grand tour of my better half, a 1.5 D with automatic. The car got it about 6 weeks ago and now ran about 11,000 Km. Almost 2 weeks ago at mileage 7500 came in the display the message that AdBlue should be refilled, otherwise in 700 Km no engine start would be possible anymore. AdBlue was refilled, but the message remained. She had to Opel and they have deleted the error and everything was good until today. There came the message that should be refilled again, otherwise in 2000 Km no engine start would be possible. Now my first questions, how big is the tank for the AdBlue actually and how far do you usually arrive with a filling? My friend drives a lot of highway with speeds between 130 and 160 and relatively little short distance. She has now refueled to the nearly 11,000 Km already three times AdBlue, is the normal?