WARNING: This page is about a different car, the 2007 Pontiac Solstice. However, it is still accessible from the selected car via links, so may be relevant.
Lubrication Specifications
Application
Specification
Metric
English
Manual Transmission Fluid API AI-A or GL-3 SAE 75W-90 GM P/N 89021806 (Canadian P/N 89021807)