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What are the common engine oil consumption problems in the 2020 Highlander? - Toyota Highlander
Home/Cars/Toyota/Highlander/Fourth Generation (2020-present)/What are the common engine oil consumption problems in the 2020 Highlander?

What are the common engine oil consumption problems in the 2020 Highlander?

Toyota Highlander Fourth Generation (2020-present)

Error Codes
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
4 min read
652 words

Problem Statement

Learn about common engine oil consumption issues in the 2020 Toyota Highlander, including symptoms, diagnostic steps, and repair instructions.

Affected Component
engine

Symptoms

  • •Check Engine Light
  • •Oil Level Warning
  • •Low Oil Level
  • •Excessive Smoke
  • •Oil Leaks

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

  • ✓Test the affected component to ensure it functions correctly
  • ✓Check for any error codes or warning lights
  • ✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • •Oil dipstick
  • •clean cloth
  • •flashlight
  • •clean cardboard or paper towel
  • •oil container for top-ups
  • •odometer or trip meter
  • •OBD-II scanner
  • •torque wrench
  • •various sockets and wrenches
  • •socket set
  • •gasket scraper
  • •sealant
  • •engine hoist
  • •ring compressor
  • •engine flush product
  • •oil change kit

Additional Information

Affected Component
engine
Difficulty
medium
Severity
medium
Tools Required
16 items

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Back to Generation
Common Engine Oil Consumption Problems in the 2020 Toyota Highlander (Fourth Generation - XU70)

The 2020 Toyota Highlander, part of the fourth generation, may experience engine oil consumption issues, although they are relatively rare. Below are common symptoms, diagnostic steps, and repair instructions for addressing oil consumption problems.

Repair Instructions

  1. If Oil Leaks are Present:

    • Replace Gaskets and Seals:
      • Tools Required: Socket set, torque wrench, gasket scraper, sealant (if necessary).
      • Instructions:
        1. Identify the leaking gasket or seal.
        2. Remove the affected component (e.g., valve cover).
        3. Clean the surfaces to remove old gasket material.
        4. Install the new gasket or seal, ensuring proper alignment.
        5. Reassemble the component and torque to specifications.

  2. If Engine is Burning Oil:

    • Replace Piston Rings:
      • Tools Required: Engine hoist, socket set, ring compressor, torque wrench.
      • Instructions:
        1. Remove the engine from the vehicle.
        2. Disassemble the engine to access the pistons.
        3. Remove the old piston rings and replace them with new ones.
        4. Reassemble the engine and reinstall it in the vehicle.

  3. If Excessive Sludge is Present:

    • Perform an Engine Flush:
      • Tools Required: Engine flush product, oil change kit.
      • Instructions:
        1. Add the engine flush product to the engine oil.
        2. Run the engine for the recommended duration.
        3. Drain the oil and replace with fresh oil and a new filter.

  4. Regular Maintenance:

    • Change Oil Regularly: Follow the manufacturer’s recommended oil change intervals to prevent sludge buildup.
    • Use Recommended Oil: Always use the recommended oil viscosity and quality as specified in the owner's manual (0W-20 for the Highlander).
Conclusion

If engine oil consumption persists after these diagnostic and repair steps, it may be advisable to consult a Toyota dealership or a qualified automotive technician for further evaluation. Monitoring oil levels regularly and addressing potential leaks or burning early can prevent more significant engine issues down the road.