A GM 5.3L V8 Vortec oil consumption class-action lawsuit has been settled with lawyers cashing in with a big pay day. GM 5.3L V8 Vortec Oil Consumtion Class-Action Lawsuit The lawsuit was filed 8 years ago according to CarComplaints.com and was settled on October 10, 2025. It was filed in the U.S. District Court for the Northern District of California under Siqueiros, et al. v. General Motors LLC (No. 3:16-cv-07244-EMC). This case was about the GM Vortec 5.3L V8 gasoline engine used in many GM vehicles. These vehicles include: The plaintiffs claim that defective piston rings in the GM Vortec 5.3L engine […] (read full article...)