Strangely truncated efficiency numbers

r43ey

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Yesterday I watched my efficiency number vacillate between 3.5 and 3.7 mi/kWh and I was pondering why it didn't go through 3.6. I went back and looked at 63 readings that I recorded and noticed that only certain values were shown. I figured it was because these are converted from the metric values of kWh/100km and then rounded. I don't know why the original kWh/100km values are only integer values. Here is a table of what I think the conversion looks like. (I didn't go infinitely in both directions, but you get the idea.) I know it really doesn't matter, but I wish I had some more decimal points.


kWh/100kmmi/kWh
8​
7.8​
9​
6.9​
10​
6.2​
11​
5.6​
12​
5.2​
13​
4.8​
14​
4.4​
15​
4.1​
16​
3.9​
17​
3.7​
18​
3.5​
19​
3.3​
20​
3.1​
21​
3​
22​
2.8​
23​
2.7​
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RickMachE

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Yes, certain numbers are never shown.
 
 







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