What is the meaning of DOT 3, DOT 4, and DOT 5 in Brake Fluid?
Have you ever noticed that on every packaging of brake oil or brake fluid there is a code that says DOT? This code can be divided into brake oil DOT 4, DOT 5, and DOT 3. All these codes have their own meanings, here is a more detailed explanation!
Brake Oil DOT 4, DOT 5, and DOT 3
DOT stands for Department of Transportation. The department referred to here is the Department of Transportation in the United States as the standard setter.
Each number written after the DOT code can be interpreted as boiling point. It should be emphasized that the term brake oil commonly used in society is actually less accurate, especially for DOT 3 and DOT 4 which are more accurately referred to as brake fluid.
This is because brake oil or brake fluid DOT 3 and DOT 4 has properties that can absorb and mix with water, unlike regular oil. Here is an explanation of each brake oil that you need to know!
1. Brake Oil Dot 3
Brake oil with the DOT 3 code has a boiling point of 205oC and is based on glycol ether. Due to its high boiling point, this DOT 3 brake oil can provide safe and consistent performance under high braking pressure.
Its corrosion protection is also good, making it safe for braking systems. DOT 3 brake oil can be used for heavy vehicles, motorcycles, and 4WD passenger vehicles.
2. Brake Oil DOT 4
With the same base as DOT 3 brake oil, DOT 4 brake oil has a slightly higher boiling point of 230oC. However, after absorbing water, its boiling point can drop faster compared to DOT 3 brake oil. It is recommended to use this brake oil only if the car manufacturer specifies it.
3. Brake Oil DOT 5
This last type of brake oil is made from silicone and has the highest boiling point, which is 260o C. DOT 5 brake oil is ideal for cars with the latest small and thin brake rotors. This brake oil does not absorb moisture and does not damage paint surfaces. Additionally, DOT 5 brake oil is also much more stable at extreme temperatures.
DOT 4 & 3 brake oils are the most commonly used for cars and brakes. Besides being inexpensive, these two types of brake oil are also a safe standard choice for drivers who tend not to brake excessively.
The presence of brake oil is very important to keep the braking system functioning properly. The type of oil used should be adjusted to the type of braking system you are using. Car manufacturers usually recommend which type of brake oil should be used.
One of them is Daihatsu, which has various superior products with guaranteed quality, such as the New Xenia, All New Sirion, All New Terios, New Sigra, New Ayla, New Luxio, Gran Max PU, and Gran Max MB.
Always Use Daihatsu Products
DOT 4 brake oil is very good for Daihatsu vehicles. If you want information faster, you can contact an official Daihatsu dealer, such as PT. Kharisma Sentosa in Surabaya. We will help you complete all matters related to purchasing a Daihatsu car, from documentation, payment, to explanations about the car's specifications and components. All processes are quick, easy, and guaranteed without additional costs.
