Today in this post we will be discussing the most important thing about engine oil. We know that there are different kinds of engine oils for various types of engines.
And, this question must have struck your mind, what’ll happen if you use 2T engine oil in a 4-stroke engine or vice versa? In this blog post, I will answer these questions in a simpler way to help you understand.
But Before we dig into the difference between 2T and 4T engine oil, we must know the function of engine oil. I have already written a blog post regarding the functions of engine oil, you should read it later. But, I will give you a brief introduction to the same here.
“The main functions of engine oil are to lubricate the moving parts in an engine, to cool and clean those parts, and to seal the combustion chamber. Lubrication helps to reduce friction and wear on the engine’s internal components, which can prolong the life of the engine.”
So, from the above point, we all are clear about why to use engine oil in the first place.
Okk, but you could be wondering why different types of engine oil are there. Why complicate simple things?
Well, the engine oils are made on the basis of the engine structure or types we have now. There are two types of engines working in motorcycles namely 4-Stroke Engines and 2-Stroke Engines.
If you are being confused and planet-struck by these terms 2-Stroke and 4-Stroke. Then worry not, I will be helping you understand these terms with simplicity and that’s what I am better at.
What are 2T and 4T engines?
In this section, we will be discussing the 2T and 4T engines in brief. I will first start with the 2T engines.
2T Motorcycle Engines
A 2-stroke engine is a type of engine that needs only 2 strokes (intake and power) to complete its engine cycle. It means a 2-stroke engine needs only 2 steps to generate power that’s why it is called 2 strokes. The two-step process includes Upstroke and downstroke.
- Upstroke (ignition/compression): The piston of the engine moves upward, compressing the air-fuel mixture in the combustion chamber.
- Downstroke (power/exhaust): The piston of the engine moves downward, generating power by combusting the compressed air-fuel mixture.
In a 2-stroke engine, the air-fuel mixture is drawn into the engine through the intake port and then compressed in the combustion chamber. Once the compression stroke is complete, the spark plug ignites the air-fuel mixture, which in turn causes the piston to move down and generate power.
Pros and Cons of 2-stroke Engine.
|Pros of 2-Stroke Engine||Cons of 2-Stroke Engine|
|Lightweight||Less Fuel Efficient|
|More power per displacement||More emission|
|Good for off-road and entry-level bikes||Not as smooth and refined as 4-stroke engines|
|It is less expensive to produce||It is often not used in modern motorcycle production|
A 4-stroke engine is a type of internal combustion engine that needs 4 strokes (intake, compression, power, and exhaust) to complete one cycle of operation. It means a 4-stroke engine needs four steps to generate power that’s why it is called a 4-stroke. The four-stroke engine operates in four steps which are:-
- Intake: During the intake stroke, the piston moves downward, creating a vacuum in the cylinder. This vacuum allows air and fuel to be sucked into the engine through the intake valve.
- Compression: During the compression stroke, the piston moves upward, compressing the air-fuel mixture in the cylinder. This increases the temperature and pressure of the mixture, making it more combustible.
- Power: During the power stroke, the spark plug ignites the compressed air-fuel mixture, causing it to combust and expand. This expansion forces the piston downward, generating power.
- Exhaust: During the exhaust stroke, the piston moves upward, pushing the exhaust gases out of the engine through the exhaust valve.
Here are the Pros and Cons of Four Stroke Engines:-
|Pros of 4-Stroke Engine||Cons of 4-Stroke Engine|
|More Fuel Efficient||More complex design|
|Fewer emission||More expensive to produce|
|Smooth and more refined||Heavier weight|
|Used in most modern motorcycles|
So, we have all the prerequisite information regarding the 2 Stroke and 4-stroke engines. Now coming to the topic of the difference between 2T and 4T engine oil.
Difference between 2T and 4T Engine oil
The basic difference between 2T and 4T engine oils is that both are designed for specific engine types. For example, 2T engine oils are made specifically for the 2-Stroke engine types while 4T engine oils are made for 4-Stroke engine types.
The basic chemical composition of both these oils are different. So, never ever think to use engine oils interchangeably.
2-stroke engine oil and 4-stroke engine oil are specifically formulated for use in their respective engine types. The main differences between the two are:
Detergent levels: 2-stroke engine oil typically contains higher levels of detergents to help clean the engine and keep it free of deposits. 4-stroke engine oil typically contains lower levels of detergents, as these engines have more complex lubrication systems that do not require as much cleaning.
Additives: 2-stroke engine oil typically contains more additives to help lubricate the engine and protect it from wear and tear. 4-stroke engine oil typically contains fewer additives, as these engines have more complex lubrication systems that do not require as much additional lubrication.
Viscosity: 2-stroke engine oil typically has a lower viscosity than 4-stroke engine oil. This is because 2-stroke engines operate at higher temperatures and require oil that can flow more easily.
Mixing: 2-stroke engine oil is usually mixed with gasoline, while 4-stroke engine oil is used straight. In 2-stroke the oil is mixed with the fuel in the gas tank before filling it up, and the mixture is then poured into the carburetor, where it is vaporized and enters the combustion chamber. This lubricates the engine and also helps protect it from wear and tear.
On the other hand, 4-stroke engines have a separate lubrication system, and the oil is not mixed with the fuel. The oil is stored in a separate oil tank or oil pan, and it is pumped through the engine to lubricate and protect the moving parts. 4-stroke engines have a more complex design, and the oil provides lubrication for the engine, transmission, and clutch.
It’s important to use the correct type of oil for your engine, as using the wrong type can lead to poor performance and engine damage.
Here is the difference between 2T and 4T engine oil in brief in a table:-
|2-Stroke Engine Oil||4-Stroke Engine Oil|
|It contains higher levels of detergents||It contains lower levels of detergents|
|Contains more additives||Contains fewer additives|
|It has a lower viscosity||It has a higher viscosity|
|It is mixed with gasoline before use||It is used straight without mixing|
Understanding the core difference between 2T and 4T engine oil is going to give your motorcycle an edge in its health and performance. After reading this article, I am sure you will not make the mistake of using engine oil interchangeably. These engine oils are made for their specific use based on their engine types and complexities. You should always remember that using the wrong engine oil could lead to some internal engine damage which will lead to costly repairs.
Therefore always refer to your motorcycle owners to know your motorcycle engine types and make the right decision. But, if you have problems finding the engine types then consult with a professional mechanic. In this post, we have discussed the key differences between 2T and 4T engine oil and provided a guide to help you make an informed decision about the best oil for your motorcycle.
Happy Riding, Be sound and safe. Have any questions, hit send an email to us.