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Which GM engines skip AFM? Here’s the list

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 ...
GM Authority

GM 6.2L V8 L87 Engine Never Had This Fuel-Saving Feature Constraint

As a result of production constraints and logistics issues stemming from the COVID-19 pandemic, GM decided to remove certain features from a number of its production vehicles. One of the most notable ...
Jalopnik

What Is Active Fuel Management (AFM) And Why Can It Cause Lifter Noise?

We may receive a commission on purchases made from links. Imagine you could get all the brawny output of a robust V8 engine in your truck when needed, but also get improved fuel efficiency while ...
GM Authority

Little-Known Chevy Silverado, Tahoe, Suburban Trick Disables DFM

As GM Authority readers are likely aware, Dynamic Fuel Management (DFM) – GM’s second-generation cylinder deactivation technology that disables a vehicle’s cylinders in the name of fuel economy – is ...