Better Gas Mileage

ScienceDaily (Sep. 26, 2008) — With the high cost of gasoline and diesel fuel impacting costs for automobiles, trucks, buses and the overall economy, a Temple University physics professor has developed a simple device which could dramatically improve fuel efficiency as much as 20 percent.

According to Rongjia Tao, Chair of Temple's Physics Department, the small device consists of an electrically charged tube that can be attached to the fuel line of a car's engine near the fuel injector. With the use of a power supply from the vehicle's battery, the device creates an electric field that thins fuel, or reduces its viscosity, so that smaller droplets are injected into the engine. That leads to more efficient and cleaner combustion than a standard fuel injector, he says. (Full Story at sd)

There are tons of "gas saving" gadgets on the market. Just about all of them do nothing at best and harm your car at worst. That said, I actually understand the priniciple these guys are working from and could see it working. The only question I have is, what about cars that are already efficient? Would this mainly work on older cars or is this something that would help any vehicle?