Re: Fuel Economy Figures, Post yours up!
Posted: Fri, 15 Apr 2016 8:02 +0000
Here's the data I collected up until the new fuel tank went in..
The white columns contain the information taken from the vehicle, and the grey columns are all calculated using that data, so they should be pretty accurate.
From memory, when I compared these average numbers with those provided by the trip computer, there were errors ranging from around 10% above, to 10% below the real world figures. I'd supply the trip computer numbers for you all to see, but I deleted them when I worked out how far removed they were from reality.
Only factor I thought might have made the errors would depend on how the computer calculates its averages.
Does it keep calculating over the whole period after you reset the figures, or does it only worry about a certain number of kilometres prior to what it is currently showing.
Eg. If you drive hard for half a tank using 14L/100km, but then cruise along flat straight roads using 8L/1000km for the 200km after. Is the average displayed at the end of this trip going to be an average of both portions of the journey, or just the last 100km say?
Does anyone know for certain how it does it?
The white columns contain the information taken from the vehicle, and the grey columns are all calculated using that data, so they should be pretty accurate.
From memory, when I compared these average numbers with those provided by the trip computer, there were errors ranging from around 10% above, to 10% below the real world figures. I'd supply the trip computer numbers for you all to see, but I deleted them when I worked out how far removed they were from reality.
Only factor I thought might have made the errors would depend on how the computer calculates its averages.
Does it keep calculating over the whole period after you reset the figures, or does it only worry about a certain number of kilometres prior to what it is currently showing.
Eg. If you drive hard for half a tank using 14L/100km, but then cruise along flat straight roads using 8L/1000km for the 200km after. Is the average displayed at the end of this trip going to be an average of both portions of the journey, or just the last 100km say?
Does anyone know for certain how it does it?