The government is currently taking steps to make diesel vehicles much cleaner. New laws mandate the use of a cleaner-burning type of diesel fuel named ultra-low sulphur diesel or ULSD. Learn about this fuel.
I've heard that it's possible to build a car engine to run off of ethanol, a byproduct of corn. How much corn would I need to grow in order to produce enough ethanol fuel to drive my car across the country? See more »
As gasoline prices soar and concern over harmful emission mounts, cars that run on alternate fuel sources are becoming increasingly popular. Natural-gas vehicles (or NGVs) are fuel-efficient, environmentally friendly and offer a relatively low cost of ownership. See more »
In the future, all of us will own flying cars. Oh, wait -- that's "The Jetsons." Our views of future transportation are a little more realistic, but cars will increasingly use electric power, reducing our dependence on fossil fuels. Right? See more »
Hydrogen-powered fuel cells are already on the streets in some parts of the world. They're powered by the most abundant element in the universe and produce zero tailpipe emissions. Are fuel cells a good solution? See more »