A recently filed patent details a new GM cylinder deactivation system that appears to be heading to the next-gen V8 engines coming in the 2027. This new GM cylinder deactivation system might replace ...

General Motors has filed a new patent that offers a look at how the company may be rethinking cylinder deactivation for its next generation of pushrod engines. The application, published by the U.S.

GM has filed a patent application a variable displacement valvetrain system with rocker shaft porting and insert sleeves for engine cylinder deactivation. The patent application is tagged with patent ...

Another day, another algorithm churns out falsehoods larping as journalism. This time, the target is General Motors’ Dynamic Fuel Management (DFM) system, with a fresh round of AI-generated slop ...