[Mike Tee]

Funny you should mention that....my car sees 5500 RPM at least once every time I drive it, and I do accelerate briskly through the gears.

Believe me, if I was driving to maximise fuel economy, my results would probably be 10% better than they are. I'm fortunate that I live in a mild climate and the highways around here are not choked with traffic..... yet, although there are too many stoplights on them.

Lifetime fuel economy records are indeed very meaningful, guys, because the ups and downs from tank to tank are thus moderated by the volume of data. For example, my 330,000 km of records on my Peugeot 405 indicates , which a more accurate/representative number than any one litre/measured distance test could ever hope to do.

Now, if the OBC was only slightly less optimistic.....