A vehicle’s fuel system comprises components that deliver fuel from the tank to the engine, including a fuel pump, fuel lines, a fuel-pressure regulator, fuel filter and fuel injectors.

by adjusting the fuel injection system and timing. Whereas gas is made from oil, ethanol is produced using more sustainable products, such as corn and sugar cane. Purchasing ethanol is therefore a ...

The cost of gas is always on the minds of drivers, so we decided to weigh in on products that promise better fuel economy. We have tested three: Fuel Genie, Platinum Gas Saver, and Tornado.