I dont know how you guys do it..... im getting average of 32mpg (manual check, 2nd click of pump), and average car read out is 37mpg, it does not seem t matter what i do either, doing local 30mph or motorway at 80ish, best ive got is 40mpg over the past 150miles but take off the computer accuracy and your talking more like 35mpg!
Pretty much what I'm getting, between 30 and upper 30s, just once I got 41 from a tankful. However, I've spent the last 2 weeks driving around rural France, and the figures were better, so I think some of us are underestimating the effect of short trips on our results. On the car's computer I got about 38 from Poole to Dover, early hours of the morning, not hurrying and usually between 65 & 75, standard Esso diesel. Once over the Channel, the first hundred or so were Autoroute, then fast A roads, but not pushing it most of the time, and the figure rose to about 44. Second and subsequent fills were Total Excellium, much the same as BP Ultimate, but despite Total's claimed benefits in performance and economy, no noticeable improvement in either, just thought I'd give my injectors a treat. A few days in the Vosges mountains lowered the figures, but tootling back through Champagne along those lovely straight, flat and almost empty roads got me back to 42. Traffic on the last bit to Calais lowered the figures again, and Dover to Poole not hurrying at all left me with a figure for the entire 2 weeks of just under 43. That was on the dash display though, filling it to the top each time and working out the mpg with a calculator revealed a true figure of about 1mpg less than the slightly optimistic computer, and of course if it measures the mileage similarly slightly out in the same way, that skews the results again. In all, I just don't believe that it's possible for anyone to improve significantly on those numbers with my car, I was driving fairly gently much of the time, though it wasn't 'economy run' stuff by any means. I might add that I hardly ever use the cruise control, it makes the car do strange things like accelerate up hills on motorways, which I'd never do. I just go with the lie of the land, letting the speed die off a little uphill, gaining a little going down the other side. I can't see how cruise could improve my economy, but the weather in France was HOT, so the climate control, which I never ever switch off, didn't get a chance to relax. I love my Alfa, and I didn't buy it for economy, but it's always puzzled me how it achieves much worse figures than the similarly quick Saab with an almost identical engine that preceded it.
Oh yes, and the mileage total has just passed 20,000, so it must be as loose as it's going to get.