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The 2007 Cadillac CTS3 6 requires oil with the type of 5W-30. It's important to change your oil within the recommended 5,000 to 10,000-mile range to avoid engine issues. Quality oil is essential for optimal engine performance and to prevent potential problems down the line. Neglecting oil changes can lead to engine failure, indicated by symptoms like a burning smell or reduced gas mileage. If you hear knocking noises from the engine, it's crucial to address the issue promptly to prevent further damage, as there's a risk of a potential explosion.
A 2007 Cadillac CTS equipped with a 3.6-liter engine should be filled with 6 US quarts of 5W-30 oil.