Hello! I am surprised myself? I have now 8377 km on the speedometer and had my car in the workshop at the last tanking, before 708 km and complained about the consumption. My Opel dealer tested the car and came up with 7.4 liters. He could prove to me. Now I drove the last 708 km according to BC with an average of 8.8 liters predominantly rural road. Always in the range between 80 and 110 km/h. My usual driving mode just. Today I filled 52,1 liters until the tap 2 times. I landed again at a consumption of 7.4 liters? I told my Opel dealer this news. On my question he and his master denied to have ever done what on the engine. I am of course pleased, but still unsure. I will keep an eye on the consumption and report on it. Anyway, I always had an actual consumption between 8.6 and 9.3 liters! Greetings, Harald