Loading

Why does my Subaru oil light come on?

If your Subaru's oil light is illuminated, it typically indicates a problem with the engine oil level or oil pressure. This could be caused by a variety of issues, such as low oil, an oil leak, or a problem with the oil pump or sensors. Understanding the potential causes and addressing the issue promptly is important to prevent further damage to your vehicle's engine.


Potential Causes of the Subaru Oil Light


There are several common reasons why the oil light may come on in a Subaru vehicle:



  • Low oil level: If the engine oil level is low, the oil light will illuminate to alert you to add more oil. This could be due to oil consumption or a leak in the system.

  • Oil leak: A leak in the engine oil system, such as a faulty gasket or seal, can cause the oil level to drop and trigger the oil light.

  • Oil pump failure: The oil pump is responsible for circulating the oil throughout the engine. If the pump fails or becomes clogged, it can cause a drop in oil pressure and activate the oil light.

  • Faulty oil pressure sensor: The oil pressure sensor monitors the oil pressure in the engine. If the sensor is malfunctioning, it may incorrectly trigger the oil light, even if the oil level and pressure are normal.


It's important to address the underlying cause of the oil light illumination to prevent further damage to your Subaru's engine. Ignoring the warning light can lead to costly repairs, such as a complete engine replacement.


Troubleshooting and Resolving the Oil Light Issue


If your Subaru's oil light comes on, here are the steps you should take to diagnose and resolve the problem:



  1. Check the oil level: Use the dipstick to verify the engine oil level. If it's low, add the recommended type and amount of oil.

  2. Inspect for leaks: Visually inspect the engine for any signs of oil leaks, such as drips or stains on the engine components or the ground.

  3. Perform an oil pressure test: Use an oil pressure gauge to measure the oil pressure in the engine. If the pressure is low, it could indicate a problem with the oil pump or other components.

  4. Check the oil pressure sensor: If the oil level and pressure are normal, the oil pressure sensor may be malfunctioning and triggering the oil light incorrectly.

  5. Consult a professional: If you're unable to diagnose the issue or the oil light remains on after addressing the potential causes, it's best to have a Subaru mechanic inspect the vehicle and perform any necessary repairs.


Addressing the oil light issue promptly and correctly is crucial to maintaining the health and longevity of your Subaru's engine. By understanding the potential causes and taking the appropriate troubleshooting steps, you can ensure your vehicle continues to run smoothly and efficiently.

Can I drive my Subaru with the oil light on?


Do Not Continue Driving. Whether it's a faulty sensor, low oil level, or low oil pressure, the best course of action is the same: stop driving as soon as you can safely do so after the oil warning light turns on. Oil lubricates the moving parts in your engine, so a problem with the oil can lead to massive damage.



Can I drive with the oil warning light on?


No, you should not drive when the oil light is on. The oil light indicates that there is a problem with the engine's oil pressure or that the oil level is low. Continuing to drive under these conditions can lead to serious engine damage, as the engine may not be receiving adequate lubrication.



What would be the first thing you check if the oil light came on?


First, safely pull your vehicle to the side of the road and turn off your engine. Next, find your vehicle's engine compartment (usually by opening the hood) and check the oil level. To do this, remove the dipstick, wipe it clean with a rag and then reinsert it into the engine and pull it back out to read its level.



What triggers an oil light to come on?


The oil light comes on when the system detects an issue with your vehicle's oil pressure. If the oil pressure is too low, the oil will not flow through the engine properly. Your car engine needs continuous lubrication to run, so low oil pressure could seriously damage the engine—even causing it to seize up completely.



How many miles can you go after the oil light comes on?


If your oil light comes on, you should try to have your vehicle inspected by a professional mechanic as soon as possible. Note, though, that driving around a bit more won't destroy anything. Generally speaking, you have about 2 weeks or 500 miles of driving before a flashing oil light turns into a legitimate problem.



Why is my oil light on but oil level fine?


Dirty engine oil and clogged oil filter
If you've checked your oil levels and they seem to be fine but the oil light is still on then is could just be that your engine oil is dirty – it has picked up too much rust, dirt and debris as it runs through the engine and is no longer able to function efficiently.



What are the symptoms of a failing oil pump?


Between moving parts which is why you're hearing the engine noise. The fourth symptom of a bad oil pump is a no start you'll crank the engine. But nothing happens. Now this doesn't occur to all cars.



Why is my oil light on if I have plenty of oil?


Potential wear and tear of the engine in main or big end bearings may cause oil pressure issues, leading to an illuminated oil light even if the oil levels are sufficient. If the problem occurs, contact a professional mechanic to get it sorted.



How much does it cost to replace an oil pressure sensor?


between $148 and $167
The average cost for an Oil Pressure Sensor Replacement is between $148 and $167. Labor costs are estimated between $75 and $95 while parts are typically priced around $72. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.



Why is my Subaru oil light on?


An amber-colored oil light indicates the pressure of the oil system is low. Your Subaru engine may have a leak, or it may be burning a small amount of oil.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.