It Is Possible To Use Diesel Engine Oil In Petrol Engine?

It Is Possible To Use Diesel Engine Oil In Petrol Engine?

There are two types of engines that are widely used in vehicles. They are diesel engines and petrol engines.

Both of them have different characters, different fuel, different working principles, and different oils used.

Then some people ask, is it possible if I use diesel engine oil for petrol engines?

Many people say that diesel engines can be used for petrol engines. Some even say that if you mix diesel oil into your petrol engine, that's even better. Because the diesel engine is made harder, it can withstand high temperatures, and it can last longer.

Diesel oil also has more detergent, making it easier to clean up engine deposits.

But is it true?

Logically, if the diesel engine is better, why don't manufacturers use diesel oil for the petrol engine cars they make? why at this time we still find diesel oil and petrol oil? why not just one type of oil?

That is because, diesel engines have weaknesses that are incompatible with petrol engines.

To make it clearer, I will explain a little about diesel engines.

It is true that the diesel engine is more powerful than the gasoline engine. But it was made because the diesel engine also worked harder than the petrol engine.

Diesel engines are generally used in trucks, buses, heavy duty vehicles, where they specialize in carrying loads.

So, the diesel engine is not required to run fast, but the diesel engine is required to produce large torque. So even though the speed of a diesel car is not too fast, it can carry a very heavy load.

Therefore, the oil used has a higher viscosity than petrol engines. When used, the diesel engine can run all day long. Therefore additives in diesel oil must be able to maintain performance at high temperatures, diesel oil must also be able to clean deposits, where the deposits in the diesel engine are more concentrated.

This is where many people use diesel oil because its durability is very high.

But what are the negative effects?

1. Speed decreased

Petrol engines specialized in speed than load. So the oil on the petrol engine must be lighter and thinner.

From here, we can already guess that if we use diesel oil in the petrol engine, the engine speed will decrease.

2. Engine warms up takes longer

Petrol engines are used in vehicles with high mobility. That means the engine is often in a stop and go condition. Therefore, petrol engines need oil that can absorb heat quickly.

Meanwhile, the diesel engine is known to have a long warm-up time. One of the cause, oil is slow to absorb heat. So that the heat distribution of the engine also takes longer.

If this is applied to a petrol engine, the engine will be in the heating phase. Overall it will consume a lot of fuel.

3. Damaging the catalytic converter

Diesel oil can also damage the catalytic converters that are now used in every petrol engine car.

So my advice, if you use a car only in short distances then you don't need to use diesel oil. Use petrol engine oil as recommended by the manufacturer.

However, if you use a gasoline-engined car to carry heavy loads and drive long distances, you can mix a little diesel oil to make the engine more durable.

 What Happens If Coolant Leaks Into Engine Oil?

What Happens If Coolant Leaks Into Engine Oil?

Coolant and engine oil are something different. Coolant is used as a medium to conduct engine heat to be cooled.

While engine oil is a lubricant for engine components.

However, the two circulate within the engine block.

What happens if coolant leaks into engine oil?

Let's discuss it.

Coolant and engine oil have their respective lines

Coolant circulates on the water jacket. Water jacket is a hole in the cylinder block and cylinder head, where the coolant will flow in this hole.

Coolant that flows in the water jacket will absorb heat in the engine block and send it to the radiator to be cooled.

While oil collects in the oil pan under the crankshaft. When the engine is running, oil is pumped to all parts including the cylinder head. Oil is returned to the oil pan through the holes around the cylinder block.

So even though coolant and engine oil have different paths, their paths are close together.

This is what could potentially cause a leak in either one.

When coolant mixes with engine oil, it will broke the physical properties of these two fluids. Initially, engine oil and coolant did not mix (like water and oil). but when these two fluids enter the oil pump and water pump, the two fluids will be stirred. So there is a mixing reaction between coolant and engine oil.

It produces a new liquid that is thicker, white like a porridge. This mixture cannot be used as a lubricant because it is very thick and not as slippery as oil.

This fluid also cannot be used as a cooling medium because when this mixture enters the radiator it will clog the radiator channel.

Then what happens if the engine is forced to run?

That will damage the engine as a whole, all parts of the engine that are rubbing against will be worn. And the engine will overheat because the cooling system is not working.

What caused that ?

The most common cause is a blown cylinder gasket. Gasket is a coating or bulkhead between the cylinder block and the cylinder head.

The reason gaskets are needed, is because the cylinder block and cylinder head are made of a tough material. So that each of them cannot adjust to make it a meeting. In fact, in the head of the cylinder there is a combustion chamber which has super high pressure.

Therefore, a soft metal gasket is needed.

In addition, gaskets also function to prevent coolant and engine oil leaks. As I said above, inside the engine block there is a water jacket and an oil line. The two lines must also be sealed by gaskets so that the two liquids do not mix.

However, when the gasket is damaged, oil can enter the water jacket and coolant can also enter the oil line.

That is what causes the coolant to mix with engine oil.

what is the solution?

The mixture of oil and coolant is attached to the components. So if you think the solution is just changing it is wrong. You have to disassemble the engine to clean the residue of the mixture that is between the components.

Therefore the best way is prevention.

Make sure you check the oil stick and coolant reservoir. If something is abnormal, don't force the car to use it.

Thicker Oil Is Needed for Older Engines, Is It True?

Thicker Oil Is Needed for Older Engines, Is It True?

Engine oil is a crucial aspect. If you choose the wrong oil, it can damage your car engine.

Engine oil is distinguished by thickness. There are single grade oil with a definite viscosity, and multi-grade oil with a thickness that can adapt to temperature.

Car engines generally use multi grade oil. Because this oil can be used during winter or summer.

There are also several kinds of multi-grade oil, there are 5W-20, 10W-40, 20-40 etc.

The lower the viscosity, the thinner the oil will be.

There are rumors that if the engine is old, it requires thicker oil. Is that true ?

Oil is able to enter very narrow gap

Oil functions as a coating for rubbing engine components. So when there are two components rubbing against each other, then in the middle of the contact there is a layer of oil. So that the two components do not experience wear.

For example, piston ring and cylinder clearance.

This clearance determines the viscosity of the oil used. if you use an oil with a viscosity higher than the oil specified in the manual book, the car will be quiet and heavy, but fuel economy will be low, and if you use oil with a lower viscosity, the car will be noisy but more agile.

An old engine means that the inside of the cylinders and piston rings are worn, which can result in greater clearance of pistons and cylinders.

If you use oil with low viscosity, there is the potential for oil to enter the combustion chamber. Because the thinner the oil, the easier it is for the oil to enter into narrow gaps. So that this can cause the oil to burn in the combustion chamber.

Therefore some mechanics recommend using engine oil that is one level thicker than the recommended engine oil for engines that are considered old. For example, if the recommended 5W-20, you can change to 10W-30.

The viscosity of the oil is able to withstand large component clearances

When the engine is said to be old, the clearance between components such as bearings, crankshaft, piston rings, etc. begins to increase. This causes a gap between the component clearances that was previously filled with an oil layer but is now not filled because the gap is larger.

So that the engine becomes noisy.

starting from that point, when you add oil that is thicker, the oil that fills the component clearance becomes thicker. So that it can fill all the gaps in the component clearances. As a result, the engine can be smoother.

But there are negative effects.

The thicker oil, the lower its mobility than thin oil, the oil will take longer to lubricate all engine parts. Even though the engine is already in a run position. So that there is a time gap where the components have not been lubricated by oil. It can cause wear and tear.

So, it is recommended before you use the car. It is better to warm up your engine in idle position before it use. You can take this for several minutes. That will give time for the oil to reach all parts of the engine.

Higher the viscosity, the bigger the engine load.

Another negative effect, the engine performance decreases slightly.

As I said before, if you use thick oil, the oil has a higher resistance. Simply put, oil pressure will increase when you use thick oil.

The effect is that the engine accelerates slightly and the fuel consumption is slightly higher than normal.

What's Make Engine Oil Turn Black? Is It Okay?

What's Make Engine Oil Turn Black? Is It Okay?

When we drain the oil, we saw the engine oil in our car is black. Even though the new oil is gold.

Then what makes engine oil turn black?

If you think the oil discoloration is due to the deteriorating quality of the oil, it has nothing to do with it.

Oil quality decreases when used continuously. However, the decline in oil quality does not change the color of the oil itself. Quality can be seen from the viscosity of the oil.

If the oil becomes very runny, this is a sign that the quality of the oil has decreased.

Then where does the black color come from?

It's actually really easy.

The black color of the oil comes from the combustion deposits in the combustion chamber. To do its work, the engine uses combustion in the combustion chamber. The combustion produces a residue in the form of carbon gas and black solid particles.

This combustion residue should be completely removed through the exhaust.

But when combustion occurs, the pressure is very high. And the piston rings have a narrow gap. This narrow gap can provide an outlet for residue from the combustion chamber.

The residue that comes out to the crankcase is only a very small amount. So it doesn't affect engine performance.

However, in one minute hundreds of combustion occur. So that the little residue will accumulate.

Inside the crankcase, the oil will flush out the cylinder (under the piston). so that the combustion residue will mix with engine oil.

As I said, the residue that comes out is very small. But because there are hundreds of burns per minute the residue can significantly change the color of the oil.

Does the color of the oil indicate danger?

In general, it is normal for oil to turn black. It indicates that the oil as a cleaner for engine components is working properly.

You don't need to worry if the oil gets dirty, because there is an oil filter that will filter the dirt carried by the engine oil.

The oil filter will filter out large solid particles that can interfere with engine oil performance.

So in conclusion, the engine oil turns black when the engine is running. The cause is the combustion residue from the combustion chamber, and it is normal.

The solid residue carried by the engine oil will be filtered and collected in the oil filter. Therefore, when you change the oil it is better to change the oil filter too.

Overfilling Engine Oil 1 liter, Can It Harm The Engine?

Overfilling Engine Oil 1 liter, Can It Harm The Engine?

Engine oil changing is a routine task to ensure engine performance is maintained.

Sometimes, for some reason you or your mechanic fill more engine oil than the standard volume.

Then can it harm the engine? let's discuss.

Oil as a lubricant for engine components

The engine consists of thousands of components rubbing against each other. To avoid wear and tear, oil must be lubricated between the components.

The oil will be stored in a component called the oil pan or charter. When you fill oil from the oil cap on top of the engine, oil will accumulate in the oil pan.

Inside the oil pan there is also an oil pump that is connected to the crankshaft. When the engine is running, the oil pump will pump oil so that the oil can circulate to lubricate all engine components.

So what happens if there is too much oil?

1. Frothy oil

If you fill too much oil, the oil height in the oil pan is higher than normal. This can cause the oil level touches the crankshaft.

When the oil surface is in direct contact with the crankshaft, then when the engine is running, the oil will aerate. This aeration is caused because the crankshaft rotation stirs the oil in the oil pan.

It produces froth and it is not a good lubricant.

So the first effect of the oil overfilling, the oil will foam, which causes imperfect engine lubrication. The effect. In the long run the engine components wear quickly.

2. Risk of oil leakage

Another effect, the oil pressure is higher than normal. Even though the seal or gasket is designed to withstand oil leaks at normal pressure.

So that it is very risky to experience oil leaks in various places.

In effect, you will see oil leakage on the engine component joints. This oil leakage will also invite dust to stick. So that your car engine looks dirty.

3. White smoke coming out

White smoke is synonymous with piston ring wear or cylinder wear. However, overfilling oil can also cause the engine to emit white smoke.

Some engines have a crankcase ventilation. This is a channel to absorb the pressure inside the crankcase and discharge it to the intake manifold.

Too much oil, the crankshaft will stir the oil in the oil pan. So that oil will splash everywhere. Oil can enter the crankcase ventilation and enter the intake manifold.

So that the smoke produced is white.

How long can i run my vehicle with overfilled oil?

If you know that the engine oil is overfilled, it is better not to use the vehicle before the oil volume returns to normal.

If the vehicle is driven from the garage to the oil shop, it may still be okay. The most important thing is not to run a vehicle with overfilled oil over a long distance. You have to normalize the volume of the oil.

How to handle it ?

If engine oil is overfilled, you only need to remove part of it. This can be done through the oil drain bolt in the oil pan.

To make it easier, you can drain all engine oil. Then you refill the oil gradually until the oil stick shows the maximum level (don't overdo it).

Accidentally Pour Transmission Fluid Into Engine, What Should I Do?

Accidentally Pour Transmission Fluid Into Engine, What Should I Do?

Transmission fluid and engine oil are something different. Engine oil is thicker, and it is more to lubricate. Meanwhile transmission fluid (ATF) is not only a lubricant, but also a fluid to operate the transmission directly (such as hydraulic fluid).

Then what if I accidentally pour ATF into the engine? is it dangerous? What should I do ?

First, if this really happened, don't panic.

Indeed, ATF is not designed as a motor oil that lubricates the engine. But if you just pour ATF into the engine without starting the engine, it shouldn't be dangerous.

1. How much fluid are you pouring

If you fill the fluid with a small volume (a few milliliters), the fluid will mix with motor oil and it's not too dangerous.

But if you pour up to 1 liter or more, then you have to drain the engine oil to get the fluid out.

Some mechanics use ATF as an addition to cleaning engine components. This is because ATF has more detergent substances. So it's even better to descale the components.

2. Before draining, wait for the oil to settle into the oil pan

If you are worried about the condition of the engine, you can drain the engine oil that has been mixed with ATF.

However, before draining the oil, you have to wait for the fluid to accumulate in the oil pan. When we pour the fluid, the fluid will attached on the gap between engine part. We need to wait it so the fluid down to the oil pan.

The trick is to wait for about 20 minutes, the oil in the oil line will go down and collect in the oil pan.

After that you can drain the oil.

What if the engine is already started?

It is possible that the engine will make a rough sound, immediately stop the engine and do as above. Drain the oil, replace it with the appropriate oil.

But because it is circulating, you also have to change the filter oil.

In conclusion, you don't need to worry too much about this kind of problem. ATF and motor oil are different, but both of them have function as lubricants.

So when applied to the engine, it is not too dangerous as long as the engine is running in a short time.

As I said above, this ATF has more detergent substances. So it's better in terms of cleaning the scale that sticks to the components.

This makes ATF used as material for engine flushing often before changing oil.

You don't need to follow this method, because we don't know if the engine condition is suitable when applied with ATF.

You can use an engine flush, this is a special product to descale the engine before changing the oil. Of course, this method is safer because it is made from materials that are safe for engine components.

Is Engine Oil The Same As The Transmission Oil ?

Is Engine Oil The Same As The Transmission Oil ?

In a car, there are several oils, the most frequently changed are engine oil and transmission oil.

Then is engine oil the same as transmission oil? if not, what's the difference?

In fact, engine oil is very different from transmission oil. Based on their function, transmission oil and engine oil are used in different conditions. Therefore the oil composition is also different.

To be clear, I will give several different types of oil in cars.

1. Engine oil

Engine oil is used to lubricate the inside of the engine, oil used in gasoline engines is also different with oil used in diesel engines.

Gasoline engine oil is designed to be smoother, equipped with friction modifiers to produce a very low coefficient of friction, and is equipped with detergent and anti-wear additives.

These additives have the ability to absorb moisture and then evaporate when it is hot. Oil on a gasoline engine, tends to be slippery. So it is not suitable for any type of transmission.

In diesel engines, anti-wear additives and detergents have higher levels. It aims to make the diesel engine able to last longer in high compression pressure conditions.

Diesel engine oil also has the ability to absorb moisture and release it when it's hot.

Due to the harsher nature of diesel oil, many believe that diesel oil is can be used for transmissions (Isuzu, and some Chevrolets).

2. Motorcycle engine oil

Unlike a car, a motorcycle only has one type of oil even though a motorcycle also has a transmission.

This is because motorcycle engine oil (4 stroke) does not contain a slippery friction modifier, so that the oil on the motorbike can be used to lubricate the engine, wet clutch, and the transmission.

Another on the scooter matic, where this vehicle uses a CVT and centrifugal clutch. So the oil is only charged to lubricate the engine, so that the physical properties of the oil are almost the same as car engine oil.

3. ATF (automatic transmission fluid)

Automatic transmission oil is oil with multiple capabilities. This oil can lubricate the mechanical parts of the transmission, withstand high pressure, can withstand high temperatures, and it is function as a coolant fluid.

ATF is not just oil, but a hydraulic fluid in an automatic transmission that operates the transmission directly.

So of course this oil cannot be used in the engine.

4. Manual transmission oil

Manual transmission oil is a pure lubricant whose main function is to lubricate the gear parts in the gear box.

As a lubricant, this oil has the ability to dampen vibrations, prevent slippage, maintain gear temperature, and can last for long-term use.

The main characteristic that distinguishes manual transmission oil from engine oil is its viscosity. Manual transmission oil is thicker than engine oil. These are typically available in 75W-80, 75W-85, 75W-90, and 80W-90 viscosities.

So in conclusion, the engine and transmission have significant differences. The engine is dominated by components that rub against a narrow gap, so that the oil in the engine must be able to enter the narrow gap and be able to smooth out any friction of the component.

Meanwhile, the transmission is dominated by mesh gears. So that the suitable oil is oil with anti-slip capability, so that the transmission can operate smoothly.