turbo charging

Ford Motor Company

Many of the claims for better fuel economy from new turbo-charged engines are more hype than reality, according to tests by Consumer Reports, the independent consumer advocacy group.

The agency tested a number of vehicles that offer regular four or eight cylinder engines, and compared them to the turbo-charged version.  Turbo-charging is a technology that gets more power from a smaller engine with direct injection of extra spurts of air and fuel.