(Reuters) - General Motors Co <GM.N> said it will invest about $332 million in four manufacturing sites to produce more fuel-efficient engines and transmission systems.Full story
CNBC’s personal finance expert Sharon Epperson reveals how to save at the pump and get 35% better gas mileage by taking steps like purchasing gas before Thursdays at 10:00 a.m.
On your marks ... get set ... go do the math! A mathematical model that lets engineers test-drive their design ideas could speed up the development of fuel-efficient systems for everything from minivans to rockets. Full story
Consumer Reports finds small turbo engines don't deliver on the fuel economy that is marketed, reports CNBC's Phil LeBeau.
