The 5,000+ mile average MPG thread

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My entry:

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Although the mileage says 6811 it's actually 16811 as I haven't reset this trip computer since I bought the car. My latest run on 2500 miles is now at 57.9mpg. Car is a 1.6 TDCI ford focus estate...

Now for the weird bit. can anyone explain this. As I drive slowly/quickly/uphill/downhill the average MPG will shift, but it will never show certain figures, such as 57.1mpg or 57.8mpg. It will jump straight from 57.0 to 57.2 and this is after several thousand miles, so it's not a 'rounding error' as it catches up with a 15 second delay. weird.

FluffySheep
 
I'm never going to win with 27mpg (town driving), but at least i enjoy driving my car.
When i had my octavia i could get an average 68mpg at 56mph on the motorway, or 58mpg at 70mph consistently.
 
FluffySheep said:
Now for the weird bit. can anyone explain this. As I drive slowly/quickly/uphill/downhill the average MPG will shift, but it will never show certain figures, such as 57.1mpg or 57.8mpg. It will jump straight from 57.0 to 57.2 and this is after several thousand miles, so it's not a 'rounding error' as it catches up with a 15 second delay. weird.

FluffySheep
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Added.
Coudl it be a rounding error from converting km to miles?
 
You do know most pumps are calibrated to be within +/- 0.01% error right? My Discovery OBC is around 10-15% optimistic, even moreso if you mess with the tyre size or wheels. If you're collecting the data manually it doesn't matter if I fill up at one station, drive 2 miles down the road and fill up at another, the data will be near on 100% accurate, unlike the OBC.

Have you got a school project that needs handing in or helping with? I think we'd all rather you just said that so we could help you.....
 
I am not going to explain to you what is the difference between intra and inter sampling variability as you don't even seem to understand the concepts of precision and accuracy. When there is another thread that will allow for manual entries you can submit your "accurate" results but until then .... bye :)
 
c1tro said:
you don't even seem to understand the concepts of precision and accuracy
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I think many people have explained that they do and you just appear to want to stick to your original plan despite the evidence presented.

c1tro said:
When there is another thread that will allow for manual entries you can submit your "accurate" results
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That's actually the answer. Make a second thread, link across to it and use all the information already given, rejected by the odd criteria of this thread. Personally, I'm really not that bothered, it's just kind of amusing to see c1tro's resistance to logic.
 
Simon said:
I'm sure this guy is a troll. First the oil thread and now this.
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It seems to me that you are the troll hanging around a thread which is of no interest to you.

Jonnycoupe said:
Don't know. Depends if you were specifying fuel use or a blend of gallons and kWh energy source?

Nor is it 5000miles yet.
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As the model of vehicle is included is doesn't matter. Might have separate lists later on.
 
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