Quote:
Originally Posted by actwithclarity
Even if you care about fuel efficiency above all else, MPG is just a vague number that should be taken with a grain of salt. It is only useful as an absolute statistic if you are driving on a set route.
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Not so. It provides the driver with a benchmark to try to surpass, regardless of route. It also can provide the driver with an indicator of the vehicle's state of tune- if the gaslog shows a sudden variation that is otherwise unexplainable, it is prudent to go give the vehicle a check-up. And of course it provides a figure to compare one's own performance with that of others.