Well that was clever ... a post with no content. Sorry!
Running a 99 Outback Limited 2.5L A/T. Fuel consumption is around
12.5L/100km urban (22.5mpg) (country town, 10-20km trips) and 11L/100km hwy (26mpg) keeping to posted limits and generally driving like a granny. Absolute best has been 9.7-9.9L/100km (nearly 30mpg - so IMO still not brilliant) over three consecutive tanks. It then dropped to current poor figure. (This compares with 10.5 and 8.5 on a manual 91 Liberty wagon on similar roads and service, driven more for enjoyment than with any real regard for fuel consumption). OB drives beautifully but fuel figures seem to be excessive for light driving usually with only one or two people. Anyone got any ideas?We have correct oil grade, new filters, new plugs, good leads, O2 sensor is ok, tailpipe emissions perfect and no codes. I don't drive most cars specifically for economy(!) but this is the first time ever I have actually been unable to when trying! Figures are reasonably consistent over nearly 5000km, regardless of fuel, including ULP with or without ethanol and 98RON Premium, which gave the worst hwy figure to date (9Km/L). So what's next? Track the fuelling through the rev range on a dyno is about all I can think of! Or is this the best I should be expecting? All helpful suggestions welcome. Thanks