Date: Mon, 25 Oct 1999 23:24:33 +1000 From: Peter Wilkins <wilkinspnopsamnet.au> Subject: Re: 9-5 computer display ?
On Sun, 24 Oct 1999 21:32:26 -0400, "J Frankel" <jfrankelnopsamdnet.att.net> wrote : >A close reading of the instruction book reveals that the display for >"distance to empty" is a result of a calculation based upon the remaining >gallons in the gas tank and the constant value of 28 miles per gallon. > >This makes no sense to me. If the computer is tracking the actual miles per >gallon, why wouldn't the calculation for miles be made with this value? > >I have yet to reach 28 miles per gallon in fuel economy. I mostly get about >22. > >Could anyone explain the logic to me? > Hi Jeff Your manual must be different from mine. The DTE is only based on 28mpg (in USA) to start off when it has no actual data. Once you start driving, it is then varied according to the average consumption over the last 10 min (from memory) updated every minute. You can notice it if you do an uphill bit then a long downhill stretch: the DTE will start increasing even though you are travelling along, because the fuel consumption rate is improving. My actual consumption varies greatly: best I have got is 6.9 l/100km (40.95 mpg imp gals) on a 300 km freeway trip at 110kmph average (69mph). Around the city, I get 10 to 10.5 l/100km (27-28mpg), and if I am in a hurry in the city, 12 to 14 l/100km (20-24mpg). -- Regards, Peter Wilkins (wilkinspnopsamnet.au)
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