Wednesday, Jul 01, 2015 at 20:30
Yes Bigfish, a couple of the responses are quite hilarious. The arithmetic is simple either way, but far simpler for some in km/l.
The logic of using "per 100km" however is completely non-existent. The 100 qualifier actually says 'we know people get scared when they see decimal points so we won't use the more logical (and consistent - check other metric standards!) litres/km' (let alone the even more logical km/l).
Here's a simple test you can try with your own families and friends. Pose these two questions and record and/or time their responses.
(1) Your car uses 18l/100km. Your
tank holds 80l, how many km will you get out of a
tank?
(2) Your car gets 6km/litre. Your
tank holds 80l how many kms will you get out of a
tank?
Here's my guess at the result of the anecdotal survey. 50% of those asked Q1 will give up or not even bother, 10% will get the answer wrong and the other 40% will take 5 times as long to arrive at the answer as those using the "non-standard".
In essence for travelling I want to know how far my
tank (or part thereof) will get me and the simplest way to arrive at that is to know how many litres (imperial of course) my
tank has and how many 'kill-o-metres' my vehicle gets for every litre used.
All moot points in the more modern vehicles of course which record
fuel consumption and compute the approx distance you can travel on the
fuel available at any time.
Just on standards, a note to lighten the very heavy load some are obviously feeling about my heresy. Re-reading Bryson's 'A Short History of Nearly Everything', the inventor of the Celsius temperature scale originally had it inverted ie
water boiled at 0 and froze at 100! Go figure.
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