I recently gave up using my Trip A meter for lmpg, because the spreadsheet I use keeps it as hand-calc'ed value (and the dealer accidentally reset it for me a while back). So I've been doing small jaunts with Trip A and find that the computer evidently keeps values above 120 mpg. Actually, I think the computer stores liters consumed since the meter was reset and combines that with miles since reset to get average miles per liter, then converts that to mpg.(see my next post) It doesn't average the instantaneous readings over time or miles. So if you're coasting with a dead engine and live electronics (is that "reboot?") there is zero gallons consumed and the instantaneous FE gets REALLY large. I have reset the meter at the top of a hill and pegged the FCD at 120 for a mile or two, then driven gently for a ways with the FCD at 80 for a similar distance and what did I get? Not 100 mpg which would be a reasonable average, but 119.9. Which tells me that the computer was recording VERY low fuel consumption while I coasted in neutral with FCD at 120.

Dave