Cadillac CTS Quiz
Vehicle Care

Engine Oil

In this manual: Vehicle Care
Introduction — 6In Brief — 59Keys, Doors, and Windows — 64Seats and Restraints — 66Storage — 15Instruments and Controls — 169Lighting — 22Infotainment System — 95Climate Controls — 10Driving and Operating — 120Vehicle Care — 170Technical Data — 7Customer Information — 48OnStar — 35
~1min read

To ensure proper engine performance and long life, careful attention must be paid to engine oil.

Following these simple, but important steps will help protect your investment:

- Always use engine oil approved to the proper specification and of the proper viscosity grade.

See “Selecting the Right Engine Oil” in this section.

- Check the engine oil level regularly and maintain the proper oil level. See “Checking Engine Oil” and “When to Add Engine Oil” in this section.

- Change the engine oil at the appropriate time. See Engine Oil Life System.

- Always dispose of engine oil properly. See “What to Do with Used Oil” in this section.

Test yourself

A quick Cadillac CTS quiz: every answer comes with an explanation and a link to the manual page.