Way back in 1981, Cadillac, reacting to the same pressure to maximize fuel economy automakers face today, came up with America's first mass-produced, variable-displacement, gasoline, V8 engine. Known ...

View post: DeWalt’s ‘Quality’ 38-Piece Impact Driver Bit Set Is on Sale for 56% Off During Amazon’s Big Spring Sale General Motors has announced the name of its Displacement on Demand (DoD) technology ...

Shoppers who care about long-term reliability increasingly want to know which General Motors engines avoid Active Fuel Management, the cylinder deactivation system that has drawn scrutiny from some ...

General Motors's Active Fuel Management (AFM) technology utilizes hydraulic valves, solenoids, and advanced software to shut down half of the cylinders in a V8 or V6 engine to save fuel. The system ...