I've only just filled up my new XTR for the second time, but once again the fuel light came on at 120 miles, then went off a mile or two later, back on at 130 miles, off again, back at 140 and then was off again by the time I got to a petrol station.

Is that what they all do? I'm guessing it is. I wanted to try to get 30 miles on "reserve" but I don't know which time "reserve" started!

What sort of mileage does the fuel light go and and stay on?