Is Your Car Leaking Oil When Parked? – 8 Possible Causes

You most certainly saw those unsightly oil marks on every parking lot that were caused by leaking oil. However, when they emerge on your own driveway, they no longer seem to be so innocuous and might cause you to feel a great deal of anxiety.

One of the most important fluids in every car is motor oil. It is in charge of ensuring that one of the most crucial components of the vehicle, the engine, works without any hiccups or interruptions. The engine is also one of the most costly components. Because of this, the issue of your car leaking oil when parked requires prompt attention and treatment by a qualified auto technician from a reputable automobile service.

In this post, we are going to discuss the reasons why your automobile might be leaking oil and how difficult the situation may be. This way, when you see the infamous stain below your vehicle, you won’t be so quick to freak out and will be able to take the appropriate steps instead.

Hey, do you have a dog whom you often travel within your car? You would love to read our guide on how to keep your pet dog cool in the car.

Car Leaking Oil When Parked: What Does it Mean?

There are a number of ways in which oil leaks may present themselves, but the great majority of oil leaks that occur while a vehicle is parked are the result of oil pan leaks, deteriorated engine gaskets, or faulty oil seals and connections.

The oil pan for your vehicle is typically secured to the underside of the engine. When the engine is not in use, it stores the oil that is used to lubricate the various moving elements of the engine. In order to empty the old oil from the engine, the oil drain plug, which is situated at the bottom of the oil pan, has to be loosened and then removed.

On the bottom of your vehicle is where you will find both the oil pan and the oil drain stopper. Gaskets are placed in the spaces between most of the metal elements that are bolted together in an engine. This includes, but is not limited to, the oil pan, the oil pan drain plug, the rear main seal, head gasket, etc. These gaskets and seals are subjected to severe temperatures as well as the elements (such as road debris), all of which contribute to wear and strain on the parts.

Few Signs of Oil Leakage in Your Car

What should you do if your vehicle does not have an oil leak while it is parked, yet the oil level shown on the dipstick continues to drop whenever you check it?

There are a few telltale symptoms that your vehicle may have an oil leak, including the following:

  • Blue Smoke: Stop your vehicle immediately if you see blue smoke coming from the exhaust pipe. There is a possibility that oil is dripping into the exhaust manifold of your vehicle (the component of your engine that gathers and directs the exhaust fumes), which puts your vehicle in danger of catching fire.

  • Overheated Engine: Is it possible that low oil might cause overheating? Certainly, it is able to! Keep in mind that the purpose of oil is to provide lubrication for the moving components of your engine while it is operating. If there is not enough oil in your vehicle, the moving parts won’t have anything to lubricate themselves, and your engine will begin to overheat.

  • Burning Oil Smell: When you exit your vehicle after driving and smell burning oil, this indicates that oil may have spilled into your already hot engine and burnt as a result of the temperature difference.

  • Oil Leakage After Oil Change: If, after having the oil changed in your vehicle, it started leaking oil, the likelihood is that something went wrong during the process of changing the oil.

    It is possible that the oil filter was not installed properly or that it was penetrated; the oil filler cap may have been damaged or left loose; the gaskets or drain plugs may have been left loose or have been over-tightened; or all of these things may have occurred simultaneously.

Can You Drive a Car that Has Oil Leakage?

Can You Drive a Car that Has Oil Leakage
carfromjapan.com

When you park your vehicle and find that it is leaking oil, it may be a very frightening experience. Driving for extremely short distances is generally considered to be safe. After discovering that your vehicle has been leaking oil for some time, you should not put off taking it to an expert in automotive repair; this is particularly true if the oil is dripping out at a rapid rate.

8 Most Likely Causes of Oil Leaking

It is vital to have a good understanding of the potential locations of oil leaks on your vehicle in order to comprehend the reasons behind them. That stain on your driveway may most likely be explained by a leaky oil pan gasket. This is the most likely scenario, and it makes the most sense. On the other hand, this might be the result of a damaged camshaft seal or a timing belt cover that is leaking timing fluid.

It is hard to guess where the oil leak originated straight away without first viewing the automobile itself, knowing a little bit about its history, and understanding a little bit about how you drive.

On the other hand, the majority of the time, an oil leak may be traced back to a damaged oil pan, a malfunctioning gasket or seal, or any other kind of damage to the car’s oil pan.

Because of this, in this post, we have chosen to focus on the eight most likely and widespread causes of oil leaks, which may occur in a wide variety of cars.

1. Oil Pan Gasket

Oil Pan Gasket
docable.com

When you see an oil stain beneath your vehicle, your first thought should be that there is a leakage in the oil pan gasket. This gasket, which is responsible for sealing the region between the oil pan and the engine block, may start leaking after some period of time and has to be changed as soon as possible to prevent major damage.

2. Cylinder Head Gasket

Cylinder Head Gasket
amazon.com

It is possible that the cylinder head gasket on your car is the source of the leak. If this is the case, you should get it replaced as soon as possible. However, in this scenario, the leaks are often located on the inside of the vehicle, which might result in the coolant and oil being mixed together.

However, similar leaks may also occur on the outside of the vehicle, and a mechanic’s initial thought, in this case, would be that there is a problem with the cylinder head gasket given the sort of engine.

3. Gasket or Timing Cover Seal

Gasket or Timing Cover Seal
z1motorsports.com

The timing cover acts as a shield for the timing chain, preventing damage to it. Oil is used to lubricate the timing chain; it is the responsibility of a gasket or timing cover seal to ensure that the oil is contained inside the timing cover at all times.

When an oil leak occurs in a timing cover gasket, the fluid will drop from the center of your car’s engine. This makes an oil leak in a timing cover gasket which is quite easy to see.

4. Adapter Housing of the Oil Filter

Adapter Housing of the Oil Filter
amazon.com

Behind the housing of the oil filter is a seal or gasket, which, similar to any other kind of seal, has the potential to begin leaking oil at some time in the future. It is possible for the oil filter housing cap seal to begin leaking fluid.

 5. Valve Cover Gasket

Valve Cover Gasket
1motorsports.com

This may be found on the very top of the engine of your vehicle. It is responsible for defending the components that are housed inside the cylinder head. And naturally, this valve cover contains a gasket that has the potential to start leaking oil after some period of use. When you find that the region surrounding the valve cover has become greasy, it is possible that this is a sign that the gasket has begun wearing out and needs to be replaced. The sooner you can get to a professional who can replace it, the less likely it is that you will have a significant loss of engine oil.

6. Oil Drain Plug and Oil Filter

Oil Drain Plug and Oil Filter
autoinstruct.com.au

Whenever you change your car’s oil, these two components will either be removed, reinstalled, or replaced. Since the components of the automobile are handled so often, it is not surprising that they develop leaks.

7. Crankshaft Seals

Crankshaft Seals
ultimateeuropeanaz.com

An internal component of the engine known as a crankshaft is responsible for installing the external harmonic balancer as well as the flywheel or flexplate.

Both the front and the back ends of the crankshaft have seals on them. In addition, as you probably have anticipated, such seals have a propensity to deteriorate with time and develop leaks at some point.

In the event that there is just a little leak, the oil will begin to pool on the underside of the engine. If you have a significant leak, you will see your car leaking oil when parked.

8. Camshaft Seals

Camshaft Seals
yourmechanic.com

Another component found on the inside of the engine is the camshaft. The camshafts of an engine provide a mounting place for the sprockets or timing gears, and there are typically at least two of them and often more than that.

If you see smoke coming from the engine compartment of your vehicle or smell what appears to be strong smoke within the vehicle, this might be a sign that there is some oil leakage in one of the camshaft seals.

Final Words

Even though most people believe that oil leaks are the cause of the stains that may be seen on a parking lot, this is not always the case. Your vehicle contains a variety of fluids in addition to the oil, all of which have the potential to leak at some time.

However, it is very necessary to contact a trustworthy and experienced technician as soon as you become aware of, or even have a suspicion of, a leak.

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