If you’ve noticed that your car’s engine oil level keeps dropping even though you’re not seeing any leaks, chances are your engine is burning oil. This is a common issue, especially in older or high-mileage vehicles. However, newer vehicles can also experience this problem if there’s a problem with the engine. While some oil consumption is normal, excessive burning could indicate a more serious problem. A serious problem requires serious car repair, and Redman’s is your go-to shop for car repair in Manchester.
Here are the most common reasons why your engine might be burning oil, and what you can do about it.
Worn Piston Rings
Piston rings seal the combustion chamber and prevent oil from seeping in. When these rings wear out over time, oil can enter the combustion chamber and burn along with the fuel. This usually results in bluish exhaust smoke, especially when accelerating.
Fix: Replacing piston rings is a significant repair that often requires a full engine teardown. If the cost is too high for the car’s value, consider using high-mileage oil with seal conditioners as a temporary solution to reduce wear and tear.
Valve Seal Damage
Valve seals prevent oil from leaking into the engine’s cylinders. If they’re worn or cracked, oil can leak into the combustion chamber, especially when the car is idling or starting.
Fix: Valve seals can be replaced without removing the entire engine, but it still requires professional work. A mechanic can perform a compression test to confirm the issue.
PCV Valve Malfunction
The positive crankcase ventilation (PCV) valve helps release pressure from inside the engine. If it’s clogged or stuck, it can cause oil to be sucked into the intake manifold and burned.
Fix: Fortunately, replacing a PCV valve is relatively inexpensive and straightforward. It’s often a minor shop repair.
Using the Wrong Oil
Using oil that’s too thin for your engine, especially in high-mileage vehicles, can lead to faster oil consumption.
Fix: Always use the oil grade recommended in your owner’s manual. High-mileage oils with additives can also help reduce burning.
Car Repair in Manchester | Redman’s Automotive
If your car is burning oil, it’s not something to ignore. Monitoring oil levels regularly and addressing the root cause promptly can help prevent more expensive engine damage in the future. However, when you do need car repair in Manchester, Redman’s Automotive is here to help.