why is my Tesla Outback consuming more oil than usual

Subaru Outback 5th Generation (2015-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

580 words

Problem Statement

Learn how to diagnose and fix high oil consumption in Tesla Outback. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before opening the oil drain plug.

Symptoms

•Increased oil consumption compared to previous levels
•Oil warning light illuminated on the dashboard
•Blue smoke from the exhaust during acceleration
•Engine running rough or misfiring
•Frequent need for oil top-ups
•Oil leaks observed under the vehicle

Diagnostic Steps

1
Check the engine oil level using the dipstick to confirm the oil consumption issue.
2
Inspect for visible oil leaks around the engine and oil pan.
3
Scan the vehicle’s computer for any diagnostic trouble codes (DTCs) using an OBD-II scanner.
4
Examine the condition of the PCV (Positive Crankcase Ventilation) system and valve.
5
Perform a compression test on the engine cylinders to assess engine health.
6
Inspect the turbocharger (if applicable) for oil leaks or excessive oil consumption.
7
Review the vehicle's maintenance history for proper oil changes and specifications.

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

•Socket set
•Torque wrench
•Oil filter wrench
•Cleaning rags
•Oil drain pan
•Funnel
•OBD-II scanner

Parts Required

•New oil filter
•Engine oil (specification as per owner's manual)
•PCV valve (if required)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the engine oil level using the dipstick to confirm the oil consumption issue.
2
Inspect for visible oil leaks around the engine and oil pan.
3
Scan the vehicle’s computer for any diagnostic trouble codes (DTCs) using an OBD-II scanner.
4
Examine the condition of the PCV (Positive Crankcase Ventilation) system and valve.
5
Perform a compression test on the engine cylinders to assess engine health.
6
Inspect the turbocharger (if applicable) for oil leaks or excessive oil consumption.
7
Review the vehicle's maintenance history for proper oil changes and specifications.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a flat surface and the engine is cool.
Disconnect the battery before working on electrical components.

2. Inspect and Repair Oil Leaks

Sub-steps:
1. Raise the vehicle using a hydraulic lift or jack stands.
2. Clean the engine surfaces with a degreaser to locate the source of any leaks.
3. Replace any damaged gaskets or seals (e.g., valve cover gasket, oil pan gasket).

Tools Required:

Socket set
Torque wrench
Oil filter wrench
Cleaning rags

3. Replace PCV Valve (if defective)

Sub-steps:
1. Locate the PCV valve, which is typically found on the valve cover.
2. Disconnect the PCV valve from the hose and remove it.
3. Install the new PCV valve and reconnect the hose.

4. Perform Engine Oil Change

Sub-steps:
1. Drain the old oil by removing the oil drain plug and allow it to fully drain into a pan.
2. Replace the oil filter using an oil filter wrench, ensuring the old filter O-ring is removed.
3. Install a new oil filter and tighten it according to manufacturer specifications.
4. Reinstall the drain plug with the correct torque specification.
5. Fill the engine with the appropriate type and amount of new oil.

Tools Required:

Oil drain pan
Oil filter wrench
Funnel