General Motors' Active Fuel Management (AFM), the company's variable displacement system, is helping drivers of GMC trucks to achieve better fuel economy. By allowing the engine to run on only half ...

When General Motors launched Active Fuel Management (AFM) and then, Dynamic Fuel Management (DFM), the idea was that the fuel consumption of truck and SUV owners could be improved by turning off ...

Its roots can be traced way back to the '50s.

General Motors is starting to build light-duty Chevy Silverado 1500 and GMC Sierra 1500 pickup trucks without Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) technologies as a result of ...

Milford, MICH. – Last year, Canadians bought more than 425,500 trucks, and that’s a double-edged sword for companies that make them. Automakers have to meet average fuel economy numbers across their ...

GM has been busy revamping its powertrain lineup. From fuel sippers to turbocharged performers, the automaker is boasting 19 new or revamped engines and transmissions, mostly available for the 2007 ...

A truck for those who don’t put theirs through the grinder on a daily basis In the period of the late 1940s and early 1950s, when pickups really started to win over workers and entrepreneurs, they ...