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General Information
For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people. Genuine GM parts have one of these marks: ...

Recommended Fuel
Use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly referred to as spark knock, might be heard when d ...

Vehicle Overview
Cadillac's long-awaited ATS gives GM's luxury brand a direct competitor to the BMW 3 Series, which is still the best-selling luxury car in America. It's something Cadillac has lacked ever since th ...