2008-2014 Cadillac CTS Oil and Filter Change 3.6L V6. AWD Sport Wagon Sedan Coupe.

Introduction

This tutorial provides a step-by-step guide to changing the oil and oil filter in a 2008-2014 Cadillac CTS with a 3.6L V6 engine. Whether you own a sport wagon, sedan, or coupe, you can follow these instructions to maintain your vehicle's engine health. Always refer to your Cadillac/GM manual for any specific recommendations.

Step 1: Gather Your Tools and Materials

Before starting the oil change, ensure you have the following tools and materials ready:

• Half-inch ratchet
• 3/8-inch ratchet
• Half-inch extension
• 3/8-inch extension
• 24mm socket
• 15mm socket
• 10mm socket
• Small screwdriver (for removing the gasket)
• New oil filter (AC Delco F2129G recommended)
• Engine oil (5W-30, 6 quarts, Dexos approved)
• Paper towels for cleaning

Step 2: Remove the Engine Cover

1. Locate the engine cover and remove it by:
   • Sliding it out from its position.
   • Popping off the knob that holds it in place.
2. Set the cover aside safely.

Step 3: Unscrew the Oil Filter

1. Leave the oil fill cap loose to allow air to vent.
2. Use the 24mm socket to unscrew the cartridge-style oil filter.
3. Be cautious, as the oil may be hot if the engine has been running.

Step 4: Replace the Oil Filter

1. Remove the old filter and clean the area where it sits.
2. Take the new filter and ensure the new outer gasket is in place.
3. Use a small screwdriver to pry out the old gasket if necessary.
4. Lubricate the new gasket with fresh engine oil to help it seal.
5. Install the new filter by sliding it into place and tightening it down gently.

Step 5: Remove the Underbody Cover

1. Locate the underbody cover held by four 10mm bolts.
2. Use the 10mm socket to remove these bolts.
3. Slide out the cover without disturbing any plastic clips.

Step 6: Drain the Engine Oil

1. Locate the oil drain plug on the oil pan.
2. Use the 15mm socket to loosen and remove the drain plug.
3. Allow the oil to drain completely into an appropriate container.
4. Clean the drain plug and re-install it, ensuring a good seal.

Step 7: Fill New Oil

1. Using the appropriate engine oil (5W-30), fill the engine with 6 quarts of new oil.
2. Replace the oil fill cap securely.

Step 8: Reset the Oil Life Indicator

1. Turn on the ignition and navigate to the oil life indicator on the dashboard.
2. Hold the reset button until the oil life resets to 100%.
3. Refer to your manual for specific instructions if needed.

Step 9: Check the Oil Level

1. Use the dipstick to check the oil level.
2. The oil level should be between the minimum and maximum marks.
3. If low, add oil as needed.

Conclusion

You have successfully changed the oil and filter in your Cadillac CTS. Regular oil changes help maintain engine performance and longevity. For future reference, consider setting reminders based on your driving habits or the oil life indicator. Always consult your vehicle's manual for specific guidance on oil change intervals.