I have done 6,300 - diesel 1.5 - it doesn't matter if i'm going back and forth to work every day, 14 mile round trip, short run at weekend 50 miles or just did 400 on short break - Lowest I ever had was 48 and it sits at around 51 all the time. I took care on the first thousand or so miles and don't accelerate hard at every traffic light but I've never been a slow driver so I'm pleased. My golf TDi sport sometime got to ~50 on a really long run but 44 ish most of the time and my Renualt Megane 1.9 TDi use to do an amazing 55 + on a trip and 45 ish around town, so I think the Juke is not too bad on consumption.