In an effort to help meet more restrictive emissions standards, GM launched a technology in 2005 that deactivates engine cylinders during undemanding driving scenarios. Known by both Displacement on ...

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 ...

When General Motors (GM) engines come up, many petrolheads will likely think of the automaker's highly-regarded LS engine. Then there are those with a more old-school bent, some of whom may remember ...

The fourth-generation Chevy Equinox debuted for the 2025 model year with sharper styling, a modernized interior, and a long list of new tech features. And yet, under the hood, the fourth-gen Equinox ...

General Motors began using LS V8 engines in its muscle car lineup in 1997 with the introduction of the 5.7-liter LS1, the first of its third-generation small block design. That first iteration, used ...

We here at GM Authority get a lot of questions from owners asking about about the recent L87 GM engine recall, one of the most common of which is what happens when an affected vehicle passes GM’s ...