Debunking the Mystery of Engine Oil Burning and Possible Solutions

Many car owners have experienced their engines burning oil, a frustrating and potentially costly issue. But what really causes it, and how can one address this problem?

Understanding Why an Engine Might Be Burning Oil

First and foremost, is it just oil leakage or is the engine really burning oil internally? The answer often lies in various factors such as mileage, service conditions, driving habits, and engine wear.

Is the mileage too low? Some cars can go up to 20 to 30,000 kilometers before needing a top-up, especially if they are running on synthetic oils.

Do you service your car incorrectly? Even dealership staff sometimes get it wrong, so it's important to ensure that you are using the correct grade and formulation of oil.

Do you drive aggressively with high revs? There are instances where a car can go through just a liter of oil over 500 kilometers if it is pushed to its limits. Conversely, if you drive primarily short distances with low engine revs, the engine may not reach proper operating temperature, leading to more oil consumption.

Has your engine overheated at some point? This could result in rings collapsing, causing oil to enter the combustion chamber.

Multiple causes can contribute to a burning oil issue, making it a complex and often challenging issue to resolve.

Consider Professional Repairs and Rebuilding

Going the professional route is the most effective solution. If the issue persists, it might be time to replace the engine. Historically, when engines were simpler and rear-wheel drive, replacing one was a straightforward process. However, with modern front-wheel-drive engines, it's a significantly more complex and arduous task. It might involve consulting with a professional to diagnose the root cause of the problem first.

Common Solutions

Worn Piston Rings - One of the most common causes of oil burning is worn piston rings. The only way to fix this is a full engine rebuild.

Worn Valve Guide Seals - Replace the valve guide seals to address another common issue.

Bad PCV Valve or Diaphragm - If these parts are faulty, they can pass excessive oil vapor into the intake manifold. Again, replacement is necessary.

Insufficient Skills - If you are not sure about the diagnostics and repairs, it is best to consult a qualified technician. Learning to do it yourself is admirable, but the expertise is not something that can be conveyed easily in this platform.

Alternative Solutions and Solutions for Enthusiasts

There are less invasive solutions that car owners can try, such as using thicker engine oil. This might not fully stop the burning of oil but can reduce the rate at which the oil is consumed, buying you some time until a proper repair can be made. However, this is a temporary measure and a long-term solution is necessary to prevent further engine wear and potential smog test failures.

While the cost of a full engine rebuild can be daunting, especially for classic or vintage vehicles, many enthusiasts decide to invest in a rebuilt engine. This way, they can keep their beloved car running and avoiding the regular replacements required by a flunked smog test.

Ultimately, dealing with engine oil burning is not just about driving but also about maintaining your vehicle's health and performance. Whether you prefer a quick fix or a thorough overhaul, addressing this issue promptly is crucial for the longevity of your car.