GM announced an additional $20-million investment in its Bay City, Mich. Powertrain operations to produce camshafts for the next generation Ecotec engine, bringing new investment at the plant to $62.5 million this year.

The Ecotec is GM’s highest volume, most-advanced four-cylinder engine program and powers products such as the Chevrolet Malibu and Equinox, the Buick LaCrosse and new Regal, and the GMC Terrain.

GM Ecotec engines have been on the forefront of delivering advanced technology including direct injection, variable valve timing and turbocharging. Direct fuel injection has been a feature of many Ecotec engines since 2007.