This isn't news. We've tested such devices over the years and have repeated tests of some products. The results: We have not found any that improve fuel economy. The Environmental Protection ...

How far would you go to save a buck on a gallon of gas? No need to do anything drastic—just follow these tricks to learn how ...

Instead of focusing on overall miles per gallon, True Fuel monitors specific driver behaviors that are proven to impact fuel ...

But no one in recent memory had ever attempted a real-world test of a tonneau cover's ability to improve fuel economy. Now Snugtop, a company that makes tonneau covers and bedcaps for pickups ...

While these additives can actually help condition worn seals and gaskets and improve ... mileage. These products are called Fuel saver chips, and they usually come in the form of a plastic device ...

In your quest for better fuel economy and more value, don't overlook the potential benefits of shifting yourself. In our tests, we've found that in some cars a manual transmission can improve gas ...

An automotive expert has offered an unconventional yet particularly useful tip to help motorists improve the fuel economy of their vehicle significantly. Whilst drivers dodged a fuel duty increase ...

We are not perfect, but the strides we have made in a relatively short period to emit less greenhouse gas and pollutants ...

Bloomberg reports today that Ford Motor Co. plans to invest 1 billion pounds ($1.84 billion) over the next six years on U.K. based research and development to improve the fuel economy of its ...