Engine Smoking After An Oil Change – Learn The Facts!

It could be a case where you’ve just changed your engine oil and out of nowhere your engine start a to smoke.

This could be because of many different reasons which ranges from the wrong type of engine oil as well as blown head gaskets. In this article, we have explained all you need to know about what causes the smoke and how you can actually fix it.

Types of Exhaust Smoke

As you may already know, there are several types of exhaust of smoke which includes black, white and blue smoke.

Black Smoke

When there’s black smoke existing from your vehicle, it is usually a sign of excess fuel burning. This tend to take place due to clogging up air filters with dirt and debris. The leads to the engine not receiving the right amount of air for smooth functioning.

It’s safe to say that there are many different reasons behind black smoke ranging from malfunctioning fuel injectors to a damage sensors.

The fuel injector is located at the head of the engine block which plays a role in making sure that the fuel flows directly into the cylinder head. When there is a faulty fuel injection in unnecessary fuel combustion, which leads to a carbon buildup in the engine, it exist as black smoke when you hit gas.

On the other hand, when your MAC sensors isn’t working as they should, it may even lead to unnecessary fuel to be left in the combustion chamber. As we all know by now, burning excess fuel usually results in black smoke existing the exhaust.

Blue Smoke

When there is blue smoke it’s a sign that there is burning engine. It could be that there is worn out piston rings. It’s also consideredto be an indication of oil leakage in the combustion chamber that is also burning with fuel. Another thing to keep in mind is that if your vehicle is equipped with turbocharged engine, malfunctioning blowers could be the reason behind blue smoke.

White Smoke

The reason behind white smoke is usually burning coolant. You’ll normally find that the leaking of coolant is due to cracks in the head gasket which usually results in white smoke. We think the best thing to do is take your vehicle to the mechanic if you start to experience white smoke.

Gray Smoke

The reason for gray smoke is usually defective turbocharger which cause the smoke to exit through the cars exhausted. The cause for this is improper air compression in your engine’s turbocharger. Another reason for gray smoke coming from your exhaust system has a lot to do with burning oil and transmission.

Reasons For Engine Smoking After Oil Change

Engine Smoking After An Oil Change

Here are a number of reasons why your vehicle might produce smoke after you’ve done a oil change.

1. Using the Wrong Type of Engine Oil

One thing for sure is that your car engine will smoke if it’s a case where you use the wrong type of oil. The thing is that some vehicles actually uses synthetic oil while others uses conventional oil. So, before purchasing oil for your vehicle, make sure to properly check the owner’s manual.

2. Overfilled Engine Oil

Upon changing your engine oil, there are chances where the technicians servicing the vehicle may overfill the engine with oil. When there is too much oil it usually leads to smoke from the engine.

In this case the excess oil makes it way pass the seals and gaskets of the engine, which results in damage and a costly repair bill along with smoke exiting the exhaust.

3. Spilled Engine Oil

The thing is that oil can lead to smoke if it gets on hot surfaces such as the exhaust manifold or catalytic converter. In order to avoid this from happening, you’ll need to clean up any spills during a oil change immediately.

4. Blown Head Gasket

It’s safe to say that a blown head gasket is one of the most severe engine problem you can experience. The main purpose for the head gasket is that it seals the engine block to the cylinder head, preventing oil, and coolant from leaking.

How to Fix Engine Smoking After Oil Change?

There are ways in which you can fix an engine smoking after you’ve done an oil change.

Check For Leaks

If somehow you notice any leaks coming from your engine, then you may want to tighten the oil drain plug and any other connection that may link to the leaking. You can now run the engine for awhile to see if the leaking continues. If the problem doesn’t go away, it might be the time to take your vehicle to the mechanic.

Tighten the Engine Oil Filter

We all know by now that smoke coming from your car’s engine can be an issue. Having a loose oil filter can cause real danger.

This is why we highly recommend checking the oil filter if you notice the engine starting to smoke after you’ve done an oil change. If the filter is loose then you should tighten it.

Drain Excess Engine Oil

Overfilled engine oil is one of the main culprit behind engine smoke. At this point, you’ll need to get the excess oil drained by loosening the drain plug.


As you can see, experiencing engine smoke after you’ve done a oil change can sometimes be a bit problematic. There are usually a variety of things that might result in your engine smoking after you’ve done an oil change and we’ve taken the time out to list a few.