Low Oil Pressure at Idle: Causes & Repair process 

Do you have any idea of low oil pressure at idle? If you have yet to learn or what you have is not enough, then you can read the text. We know the main driving force of the engine is oil. Because without oil, it is impossible to start the engine. 

And so the role of oil is immense in keeping the engine running and running well. But everything has a balance. Similarly, there is a balance of oil and oil flow in the machine, which needs a certain quantity of oil.

And if there is an imbalance in this balance, there is a variation in the oil flow and oil pressure in the engine. For example, if the oil level is low at idle, the oil pressure also decreases. Sometimes due to wrong or poor quality of oil and operational failure, you may also see there is no proper oil pressure. This is considered low oil pressure. Let’s discuss this in detail:

6.2 low oil pressure at idle

What causes oil pressure low at idle?

Some of the causes of low oil pressure at idle are:

1. Less oil

The leading cause of low oil pressure at idle is low oil in the oil pump. If there is not enough oil when the engine is idling, it causes changes in engine pressure. If the oil level is low, the pump can only work if it gets the right amount of oil. 

At this time, turning at high speed reduces the oil pressure as the sudden shock forces the oil away from the sensor. Low oil pressure is usually caused by inadvertence. So to solve this problem, you need to know the exact reason and take action according to 5.3 low oil pressure at idle.

2. Poor quality of the oil

Make sure that the oil used in the car is of good quality. If engine oil is not changed for a long time, the oil becomes contaminated, which can have a detrimental effect on engine pressure. 

Moreover, due to not changing the oil for a long time, the efficiency and effectiveness of the oil decrease. So if the oil quality is terrible, it can cause the oil pressure low at idle. Again the composition of the oil changes, but the oil pressure decreases. 

3. Faulty oil pump

The oil pump plays an immense role in keeping the engine system running. Because if the oil pump is faulty, it can no longer pump oil properly to the engine. A faulty oil pump can cause the engine to start flashing, and the engine may become unusable; if the oil pump is defective should repair quickly.

4. Clogged oil filter

One of the causes of low engine oil pressure is a clogged oil filter. If the oil filter is not changed on time, it will fail to properly circulate the oil through the sludge. This can cause oil to clog and reduce flow.

So always check the oil filter while changing the oil in the car. Replacing the oil filter is not very expensive. So should replace the oil filter periodically.

5. Defective pressure gauge

This happens right after low oil pressure at idle. And it slows down until the system comes back. In that case, should check the pressure gauge of the car and should also take care of the electrical system.

6. Wrong oil grade

You should check whether you using the recommended grade of oil in the car engine. Because each car engine requires a different grade of oil, oil should be used according to the engine OEM recommendation otherwise engine can face 6.2 low oil pressure at idle.

Although some engines can use more than one grade of engine oil, most require a specific viscosity grade of oil. Because if the grade of oil is lower or higher than the engine, i.e., thick or thin, it will not be able to supply oil to the engine properly, and the oil pressure will change.

7. Damaged engine

One of the worst cases is when the engine is damaged. Because if the engine is damaged, the car is also damaged. The engine is not taken care of properly, and it gets damaged.

So take care of the engine. To know what is going on inside the motor, you need to read all motor-related topics. And accordingly, all the steps to keep the engine in good condition should be taken.

Check: Low Engine Oil Symptoms

How to fix low engine oil pressure?

Some of the causes of low oil pressure are a faulty pressure gauge, wrong oil used, faulty oil filter, etc. So to keep the oil pressure under control, these things should be taken care of. Let’s discuss this in detail, how to fix low oil pressure at idle:

Add more oil

If the oil level in the engine is low, the oil pressure drops at idle, so in the engine, to solve this problem, add more oil. To know the current position of the oil or to know where the oil is, use the oil dipstick to know the oil position and oil level.

If the oil is too far from the dipstick, i.e., the oil level is less than the specified measurement, then more oil needs to be added to it. And also to make sure that the quality of the oil matches the new oil that is out there and the quality is in good condition. And don’t add new oil to dirty or very old oil, as this quickly degrades the new oil you are adding. Another thing you should keep in your mind is that, because high oil pressure can cause accidents, it is necessary to be careful in this regard as well. So, use the right oil in the car, check the oil level of the car periodically, and keep the engine free from the problem of low oil pressure.

Oil pump & filter replacement

If the oil pump is too old or damaged, it must be replaced. it fails to supply the oil properly and in the right amount, which disrupts the car’s engine and everything else connected to the engine. This results in low oil pressure. So there is no alternative to keeping a good oil pump to deal with engine problems and low oil pressure.


Depending on the car model, these repairs may cost different. If the oil pump is fine, the next step is to check if the oil filter is working properly. If the oil filter is clogged after changing it, a new filter must be replaced. After observing all of these and making sure that everything is working properly. You should choose the best or universal lifetime oil filter for your car engine if you think the faulty oil filter is causing low oil pressure.


Repair the pressure gauge

Low oil pressure at idle can be resolved by repairing a faulty pressure gauge. The pressure gauge can have problems due to various reasons. For example, there may be problems due to electrical problems or sensor problems. And if it goes on for a long time and you don’t notice it, it can slowly destroy the performance of the engine.

So, if there is a problem with the pressure gauge, it needs to be repaired quickly. To repair a pressure gauge, first determine which part has failed. Then action should be taken accordingly. Necessary should be taken to an experienced mechanic.

Use the right oil

Many times using oil by mistake or not knowing about the engine results in low oil pressure at idle when warm. So wrong oil cannot be used in the engine. Before using oil, one should know the engine type of the car. 

To determine the exact oil, you should use in your vehicle, refer to the vehicle’s engine manual. Because using the right grade of oil can fix low oil pressure and keep the car and car engine running well.

Fix the engine

Minor engine problems can be easily fixed. But, if the engine is seriously damaged, it is quite expensive and time-consuming to repair it. 

There are a few alternative methods for replacing the engine. First, buy a used engine cheaply and rebuild it. These used engines are easily available for purchase at any mechanical garage. 

Why does oil pressure drop at idle

Why does oil pressure drop at idle?

When it low oil pressure at idle means that not enough oil is circulating in the engine. If there is not enough oil circulating through the engine and low engine oil pressure, this can cause serious engine damage and even complete engine failure. 

.This will reduce the oil pressure of your car engine. So periodically check your car’s oil pump to see if there is enough oil in the car’s oil pump.

The danger of low oil pressure at idle

And if the engine of the car is damaged, the car has no value because the main part of the car is the engine. If the engine is broken, a new engine can be replaced later, but it is expensive and not as efficient as the original engine. 

Moreover, low oil pressure can damage your engine and the entire vehicle. As a result, serious accidents can also occur. So low oil pressure at idle is dangerous.


 Q. How to increase oil pressure at idle?

There are several ways to increase oil pressure at idle. For example, the first could be to change your oil completely. Plus, you can update the oil filter for life. Regular oil pan cleaning can also increase oil pressure at idle. By testing the oil pump and engine, it is possible to increase the oil pressure a lot.

Q. Does thicker oil raise oil pressure? 

Yes, of course. Condensing oil increases oil pressure, but it can be seen that engine horsepower will be greatly reduced.

 Q. Why is my oil pressure low but my oil level OK? 

This can be due to various reasons. For example, worn piston rings, leaking seals, etc. On the other hand, you may find a leak. But overall, it depends on the age and condition of the car.

 Q. Is it normal for oil pressure to drop at idle?

Yes, This is normal operation for your oil pressure. It should also be remembered that the faster the motor rotates, the more oil pressure will be created. If more oil pressure drops at idle, then this would be considered a problem.


Although low oil pressure at idle is not considered a critical issue by many, it is no less important. Oil pressure is an important factor in increasing the durability of your vehicle and increasing the longevity of the engine. So you should be very careful about the engine oil pressure. If you are unable to identify the problem, the vehicle should be shown to an experienced mechanic. Because mechanics know everything about the car, they can easily identify the problem.





Emon is Lubricants specialist who studied on Petroleum Engineering in UAE. He have more than 10 years experience on different kinds of lubrication including automobile troubleshooting.