This website is dedicated to providing free information about automobiles
to a large audience. Complex engineering principles are explained
in plain English so that anyone can understand how engines work
and how to increase engine efficiency. Using fuel more efficiently
can mean an increase in power and gas mileage.
This is a work in progress. It will take some time
to write and publish all of the content. Come back and check periodically
to see what's new.
There's a great mythology perpetuated by all sorts
of public media ranging from televised news, to newspapers, to magazines,
and the web. This myth has become so commonplace that it is accepted
without question. The myth is that high gas mileage vehicles use
fuel efficiently. High gas mileage does not and has never meant
If better gas mileage is the goal, then the problem,
not the symptom needs to be addressed. There are no magical gas-saving
devices. However, there are proven ways to get an engine to do more
work with less energy. That means making a car use fuel more efficiently.
This will be explored in great detail on this website.
There are few fundamental ideas that this website
is based on:
• “Fuel efficiency" does NOT mean "high
• Energy is free. Gasoline is cheap.
• Economical cars are not expensive.
• All machines are governed by the same natural forces.
• This website is based on data, math, physics, and engineering.
• No conspiracy theories here.
• The author panders to no special interest group, no
matter how small.
• The author is not responsible for the actions of others.
• Try it at home; just don’t blame the author if
it doesn’t work out.
High gas mileage means the automobile travels far
on a relatively small amount of fuel. High gas mileage does not
mean high fuel efficiency. As an example, a 2006 Kia Rio gets 50%
more mpg than the 2008 Corvette while the Corvette's efficiency
is twice that of the Rio. This means the Corvette makes more use
of the same quantity of fuel than the Kia Rio does.
The Corvette does a very fine job at converting every
bit of energy the gasoline has to offer into acceleration. The Kia
Rio wastes energy converting fuel into distance. The Kia Rio could
be doing a much better job than it is currently doing. This means
the Corvette owner is getting more value from the gasoline purchased
than the Rio owner. If the Rio used fuel as efficiently as the Corvette,
it would achieve 60mpg.
To find out how the best gas mileage cars compare
to the most fuel efficient cars go to the efficiency rating
index. There isn't another comparison chart like this. The information
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2009. Efficient-Mileage.com. All rights reserved.