Quote:
Originally Posted by Ferra
because mpg is generally a non-linear expression...which makes comparison difficult & confusing especially when you start looking at the more extreme ends..
Example: when you compare 50mpg vs 70mpg...the 20mpg difference looks huge
However, when you do the calculation, that 20mpg difference will only save you 1.3L of gas over a 100km trip.
On the other hand, when you compare 10mpg vs 30mpg (also 20mpg difference),
this 20mpg difference will now save you 15.7L of gas over the same 100km trip...
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Regardless of how the two are PERCEIVED, mathematically mpg and gpm are direct inverses of each other and the relationship between the two will always be the same.
The real problem is, people aren't taught to THINK anymore, so they have to have information like this spoon-fed to them like they're mindless idiots.