Date: Mon, 25 Oct 1999 09:49:49 -0400
From: "JF" <>
Subject: Re: 9-5 computer display ?

Wow Peter, that is 34 mp(us)gal! you must have the 4 cyl engine?! I would be happy with the 28 mpg with my v-6 (with expensive (by US standards $1.30 per gallon) high test fuel). WRT the manual, I suspected that something was wrong. Although I did find another error in the chapter about the sound system. Jeff Peter Wilkins <> wrote in message news:wVcUOPoBXIYuBPncnEVJyJ9Le42Inopsamcom... > On Sun, 24 Oct 1999 21:32:26 -0400, "J Frankel" > <> 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 (

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