Realist safe Consumption City V70 II 2.5T (209 hp), switch?

Just before I joined up, I already found information about fuel monitor and also in the forum. What does the 2.5T petrol engine in the V70II need in short distance operation in the city? Am I lying there with 10 – 11 liters correct or is that too low? Should the 2.4 140 or 170 hp engines consume much less, I would probably change my mind. I find that the 2.5T is not cheaper than the D5. For vehicles between 50000 – 70000 Km mus I have a little bit of fear that I have to bleed pretty much in the petrol truck in 2-3 years when I am selling it again….