Morning Overview on MSN

Which GM engines skip AFM?

General Motors’ Active Fuel Management system has been around long enough to earn both fans and vocal critics, and that split ...
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 ...
Hosted on MSN

Which GM Engines Don't Have The AFM System?

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 ...
GM Authority

Which GM Trucks And SUVs Had DFM (And Auto Stop-Start) Removed During COVID

During the COVID-19 pandemic, supply chain disruptions and semiconductor shortages forced automakers to make some tough decisions. For GM, one of the compromises was the removal of Dynamic Fuel ...
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 ...