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 ...

NACFE Fleet Fuel Study showed that the fuel economy of the studied fleets from 2022 and 2023 improved 4.2% and 2.0%, ...

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 ...

The North American Council for Freight Efficiency’s recent fleet fuel study highlighted truck fuel economy gains of 7.77 mpg ...

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 ...

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 ...

Based on data from some of the North American freight industry’s largest carriers, fleet-wide fuel efficiency averaged 7.77 ...