[Zero10]

I just did a big highway trip, and I got 41mpg (us gallons, 51mpg imperial gallons). I was absolutely stunned, that's the best mileage my car has ever gotten.
My engine is nearly toast (90-110psi on all 4 cylinders), however, everything outside of it is in tip-top shape.
If you want to crunch the numbers yourself, I went 1040km's on 60 litres.

I usually get 700km's before the light comes on, and it usually takes 70 litres. I don't know what that is in mpg, but it's 10L/100km's (for us Canadian guys).

That highway trip, I took it pretty easy, drove 120kph the whole way, not a lot of spirited driving, about 100 city km's on that tank as well, and a lot of hills.