This manual covers the 1940 Oldsmobile Series 70, a model known for its sleek "Torpedo" body style and advancements like the introduction of independent front suspension. Produced by Oldsmobile, a pioneering American automotive brand established in 1897 and later acquired by General Motors, the Series 70 represented a significant styling and engineering update for its time. It competed in the mid-price range against marques such as Buick, Dodge, Mercury, and Ford, appealing to buyers seeking quality and modern design. The vehicle featured an inline 6-cylinder, overhead valve engine with a displacement of 230.7 cubic inches, producing approximately 90 horsepower, and offered a three-speed manual transmission or the innovative Hydra-Matic automatic transmission.

This comprehensive Factory Service and Repair Manual provides detailed information for maintaining and repairing the 1940 Oldsmobile Series 70. It covers essential areas including mechanical and electrical systems, chassis, and bodywork. Within its extensive pages, you will find step-by-step repair procedures, diagnostic charts for troubleshooting common issues, tune-up guidelines, and adjustment procedures for various components. The manual also includes critical technical specifications, tolerances, torque values, and detailed diagrams, such as exploded views and wiring schematics. Its purpose is to serve as an authoritative resource for owners, mechanics, and technicians, ensuring the longevity and optimal performance of this classic vehicle.