Yes! still an ongoing problem with mine, it started around 30k miles, mileage is now 50k miles. Interesting that Raeman mentions the performance issues, mine is also doing this, it seems fine when the engine is cold but once it's warmed up, particularly in hot weather it turns into a 1.0l gutless wonder. It is also often pinking/knocking under load - anyone else got that? I would also say the mpg has fallen since last year.
I've been to two different Honda dealers, both took it out for a test drive and reported they couldn't find anything wrong with it (?!). It's hard to measure accurately the oil consumption but I'd say mine is using about 1 litre of oil every 1300 miles using 5w30 oil, it was worse with 0w20. The dealers just quote the manual where it says it can use up to 1 litre every 625 miles, which is ridiculous. I don't know why I bother having an oil service, it's not in there long enough to get dirty
I had read online that a faulty PCV valve can cause excessive oil consumption so a few months ago I changed mine even though the old one looked ok. However, it's still burning oil so I don't think that has made much difference.
In the hope of fixing the pinking, a few weeks ago I replaced the spark plugs even though they're not due until around 75k miles, again, it doesn't appear to have made much difference.
Has anyone ever noticed either of their radiator fans coming on? I can't think of any time when mine have regardless of how hot it is.
I am concerned that the poor running and knocking will damage the engine in the long-run, but can't keep paying Honda to investigate be told they can't find anything wrong with it.