This manual covers the 928 models from 1990 to 1993, including the 928 S4, 928 GT, and 928 GTS. The 928 is a front-engine, rear-wheel-drive Grand Tourer renowned for its powerful V8 engine, transaxle layout for optimal weight distribution, and distinctive aerodynamic design. These models were engineered to offer a blend of high-speed cruising, comfort, and engaging driving dynamics, positioning them as luxury grand tourers capable of competing with European counterparts. The final evolution of the 928 series, these variants showcase significant engineering advancements and performance enhancements, reflecting a commitment to innovation in the sports car segment.

This technical specifications manual provides comprehensive data essential for the maintenance and repair of the 928. It details critical information across various systems, including the V8 engine, powertrain, drivetrain, chassis, and electrical systems. The manual covers key technical specifications, fluid requirements, lubrication points, and torque values, along with troubleshooting charts and general assembly data. Its purpose is to serve as an authoritative resource for owners, mechanics, and technicians, enabling them to accurately diagnose, maintain, and repair these sophisticated vehicles, ensuring their continued optimal performance and longevity.