why does my Toyota RAV4 XA50 (2019-2024) use so much oil?

Solution

1. Preparation

• Gather tools and parts: OBD-II scanner, socket set, torque wrench, oil filter wrench, engine oil (manufacturer-recommended), replacement gaskets.
• Disconnect the battery to ensure safety while working on electrical components.

2. Inspect and Replace PCV Valve

• Locate the PCV valve, typically found on the valve cover or intake manifold.
• Remove the old PCV valve by twisting and pulling it out.
• Install the new PCV valve, ensuring it fits securely in place.

3. Address Oil Leaks

• Identify the source of any external leaks found during inspection.
• Replace gaskets or seals as necessary:
  • For valve cover gasket: Remove the valve cover bolts, lift the cover, replace the gasket, and reinstall.
  • For oil pan gasket: Drain oil, remove oil pan bolts, replace gasket, and reattach the oil pan securely.

4. Engine Oil Change

• Drain the old engine oil using a socket set to remove the oil drain plug. Allow the oil to fully drain.
• Replace the oil filter using an oil filter wrench.
• Reinstall the drain plug and torque to manufacturer specifications (typically around 30 ft-lbs).
• Fill the engine with fresh oil, ensuring it meets the manufacturer's specifications for viscosity and type.

5. Final Checks

• Reconnect the battery.
• Start the engine and let it idle to check for leaks and ensure proper oil circulation.