445 km before the last bar starts blinkin...?

[Vinceb]

I haven't paid much attention lately to mine, but usually when winter hits and I put the snow tires on, I end up between 500 - 600km per tank, depending on how many bad snowstorms we get. **My commute is mostly Highway, 80km highway, 5km city approx.
Put the summer tires back on and I end up around 700 - 750 per tank, though I always end up on the last bar, flashing quickly, i've put in 40.6L at one point. 5 years old and 245,000 km at this point.