2018 Chevrolet Cruze Is Leaking Oil

Discover the Common Causes of Oil Leaks in Your 2018 Chevrolet Cruze and How to Fix Them Effectively

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
80% chance it's the
Oil System Components
0%
20% chance it's the
Engine Gaskets
The most common reasons a 2018 Chevrolet Cruze is leaking oil are oil system component failure and leaking engine gaskets.
  • Oil System Components: A worn or damaged oil pump or filter can lead to low oil pressure, resulting in inadequate lubrication and potential engine damage.
  • Engine Gaskets: A worn or damaged engine gasket can lead to oil or coolant leaks, resulting in engine overheating or loss of lubrication.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2018 Chevrolet Cruze is leaking oil?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

Oil pans don't wear out or break like other parts, they generally only need to be replaced because of external damage from an accident or an improperly tightened drain plug. The main symptom you will experience is an oil leak underneath the engine of your car. The oil that leaks from a damaged oil pan will range from dark brown to dark black. If the leak is large enough or occurs for long enough the oil level will be low enough to turn the oil pressure or low oil level warning light on.

The engine oil pressure warning light will come on if the engine oil pressure is low, or if the oil pressure sensor is faulty. In either case, engine power may be reduced significantly. The check engine light may also illuminate, and an on-board diagnostic (OBD) trouble code will be stored in the vehicle's computer.

What steps should I take to diagnose the oil leak in my 2018 Chevrolet Cruze?

To effectively diagnose an oil leak in your 2018 Chevrolet Cruze, begin with a systematic approach that prioritizes simpler checks before moving on to more complex diagnostics. Start by locating the leak; inspect the area under your vehicle for any visible oil drips or stains, which can provide immediate clues. Next, check the oil level in the engine; a consistently low level may indicate a leak. Focus on the oil filter and drain plug, ensuring they are secure and free from damage, as these are common culprits. Additionally, examine gaskets and seals, particularly around the valve cover and oil pan, for signs of wear or deterioration. If the source remains elusive, consider using UV dye in the oil, which can help highlight leaks when viewed under a UV light. For a more thorough investigation, a pressure test of the oil system can pinpoint leaks in lines or fittings. If these steps do not yield results, consulting a professional mechanic is advisable, as they can provide a detailed inspection and recommend necessary repairs. By following this structured diagnostic approach, you can efficiently identify and address the oil leak in your vehicle.

What are the common causes of oil leaks in a 2018 Chevrolet Cruze?

When dealing with oil leaks in a 2018 Chevrolet Cruze, it's crucial to understand the common culprits that may be at play. One frequent issue is a degraded or damaged oil pan gasket, which can wear out over time and lead to significant leaks. Another common source is the valve cover gasket; if this component is worn or damaged, it can result in oil seepage that may not be immediately visible. Additionally, a leaking oil filter can occur if it is not properly installed or if it has become loose, allowing oil to escape from the engine. It's also important to check the oil drain plug, as a loose or damaged plug can easily lead to leaks. Lastly, keep an eye on the seals around various engine components, such as the crankshaft and camshaft seals, as these can crack or wear out, contributing to oil leaks. By being aware of these potential issues, DIYers can take proactive steps to inspect and address oil leaks, ensuring their vehicle remains in optimal condition. Regular maintenance and timely inspections are key to preventing more serious engine damage down the line.

How urgent is it to address the oil leak in my 2018 Chevrolet Cruze?

Addressing an oil leak in your 2018 Chevrolet Cruze is not just a matter of routine maintenance; it is an urgent issue that requires immediate attention. Oil leaks can significantly reduce the oil levels in your engine, leading to inadequate lubrication of vital components. This lack of lubrication can cause severe engine damage over time, resulting in costly repairs that could have been easily avoided. Moreover, neglecting an oil leak can lead to engine overheating, as the oil is essential for regulating temperature. The risk of fire is another serious concern, as leaking oil can drip onto hot engine parts, creating a hazardous situation. By promptly addressing the oil leak, you not only safeguard your vehicle's performance but also enhance your safety on the road. Therefore, it is crucial to take action as soon as you notice any signs of an oil leak to prevent further complications and ensure the longevity of your Chevrolet Cruze.

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