It depends on driving style. How often do you floor it even up until 3k, do you coast when you can? Has it been serviced recently? What's the weather like? Do you drive on a motorway or around town?
Anything between 30-40 is reasonable for the 2l 8v. I once got 43mpg out of my old 8v but that was on the motorway and sticking to 70mph.
Around town around 32-34 is reasonable and on an open road then 34-40. That's all driving sensibly, stick your foot down on an open road and expect low 30's/high 20s.
