Being aware of the functions of transmission fluid is essential for every vehicle owner. Transmission fluid is one of the most sensitive and critical fluids in both manual and automatic vehicles. It plays a key role in the smooth and proper operation of the transmission system. The transmission is responsible for transferring engine power to the wheels and regulating the vehicle’s speed. Without high-quality and suitable transmission fluid, the proper functioning of this system cannot be expected.
This specialized fluid lubricates the internal components of the transmission, reducing friction, preventing wear, and dissipating excess heat. As a result, it extends the lifespan of the transmission and helps avoid serious damage. In this article, Alfaris Auto aims to cover topics such as the definition of transmission, its types, their importance in driving, when to change different types of transmission fluid, problems caused by improper use, and tips for selecting the best transmission fluid. We hope that with complete knowledge, you will be able to take good care of your vehicle’s transmission and reduce costly repairs. For consultation and transmission repair in Dubai, you can also contact our team.
In the article “What Are the Functions of Transmission Fluid?” you will learn about:
What Is Transmission Fluid?
The primary function of transmission fluid is to lubricate the gears, bearings, and other moving parts inside the transmission. This fluid must withstand harsh working conditions, including high pressure, elevated temperatures, and intense friction, while also preventing corrosion and deposit formation.
Transmission fluids are mainly divided into two categories based on the type of vehicle transmission:
- Manual Transmission Fluid (MTF): Designed for manual transmissions, this fluid requires high viscosity and mechanical resistance to provide effective lubrication.
- Automatic Transmission Fluid (ATF): Specifically formulated for automatic transmissions, ATF not only lubricates but also helps transfer hydraulic pressure within the system. It contains special additives to control temperature and prevent foaming.
Transmission fluid bases are usually mineral or synthetic oils enhanced with additives such as anti-rust agents, antioxidants, and anti-foam compounds to ensure durability under tough conditions. Alfaris Auto strongly recommends using the manufacturer’s specifications to select the appropriate transmission fluid for your vehicle.
The Importance and Role of Transmission Fluid in car
The transmission consists of a set of gears and moving parts designed to transfer engine power to the wheels and adjust the vehicle’s speed. These components are in constant contact, and without proper lubrication, they are prone to wear and damage. The role of transmission fluid is to reduce friction, lower the heat generated by metal-to-metal contact, and prevent the deterioration of parts. It also facilitates smooth power transfer between gears, preventing gear sticking or slipping during shifts. Therefore, transmission fluid not only extends the life of transmission components but also ensures smoother and more efficient transmission performance.
Types of Transmission Fluid and Their Differences
- Manual Transmission Fluid (MTF): This fluid is designed for manual gearboxes and must have high resistance to mechanical pressure and friction. It typically has medium viscosity and excellent lubricating properties. For example, in Peugeot or Renault vehicles, using high-quality manual transmission fluid improves gear lubrication and extends transmission life. The better the lubrication, the less frequent the need for transmission repairs.
- Automatic Transmission Fluid (ATF): ATF is lighter and contains special additives to control temperature, prevent foaming, and protect against rust. Besides lubrication, it plays a hydraulic role in automatic transmissions by transferring pressure within the system. Its viscosity varies depending on the transmission model, and it is crucial to use the exact type recommended by the manufacturer.
- Key Differences: The composition and function of manual and automatic transmission fluids are entirely different, and they should never be substituted for each other. Using the wrong fluid can cause serious damage to the transmission. It is also important to know the type of transmission your vehicle has; for more information, you can refer to the article “Types of car Transmissions.”
Contact with AlFaris
You can contact our experts for free consultation, discuss the type of problem or service you are requesting, and arrange for your presence.
Important Tips for Maintaining the Transmission and Its Fluid
- Always follow the vehicle manufacturer’s recommendations regarding fluid type and replacement intervals.
- Have transmission fluid changed at reputable centers and specialized workshops like Alfaris Auto in Dubai to ensure quality service.
- After fluid replacement, monitor transmission performance by test driving and checking for leaks.
- In harsh climatic conditions, pay special attention to regular fluid changes.
Transmission fluid is a fundamental element in maintaining the transmission’s performance and directly affects the vehicle’s efficiency, safety, and longevity. Having a clear understanding of the different types of transmission fluids and their applications allows you to make smarter choices. Informed decisions help avoid costly repairs. Regular fluid changes and using high-quality products guarantee smooth and durable transmission operation. It is recommended to always select the best transmission fluid according to your vehicle’s manual and driving conditions and to replace it on time to keep the powertrain healthy and ensure safe, trouble-free journeys.
When and How to Change Transmission Fluid
Timely fluid changes and regular maintenance are essential to preserve the performance and functions of transmission fluid. Most manufacturers recommend changing transmission fluid every 40,000 to 60,000 kilometers, but this interval may vary depending on driving conditions, vehicle model, and fluid type.
Signs that indicate the need for transmission fluid replacement include:
- Unusual or harsh noises when shifting gears
- Hard or slipping gears
- Dark or cloudy fluid color
- Burning smell or smoke coming from the transmission
Neglecting fluid changes and maintenance leads to impaired transmission fluid functions and causes various problems. In such cases, your vehicle should be inspected by specialists. Alfaris Auto, as a specialized center for repairing various types of vehicles, is ready to provide car repair services in Dubai.
Main Steps for Changing Transmission Fluid:
- Warming up the transmission to facilitate better drainage of old fluid
- Draining the old fluid and inspecting the filter (if applicable)
- Refilling with new fluid according to the vehicle manufacturer’s instructions
- Ensuring safety measures and using original, high-quality fluid
Problems Caused by Improper Use or Lack of Transmission Fluid
Using low-quality transmission fluid or delaying its replacement can cause serious issues affecting the functions of transmission fluid. Increased abnormal noises during gear shifts indicate insufficient lubrication and component wear. Gear slipping or sticking usually results from poor fluid quality or low fluid levels. Internal part failures occur due to excessive friction and heat, leading to corrosion of gears, shafts, and bearings. Using inferior fluid and neglecting timely changes can cause complete transmission failure, resulting in costly repairs or replacements.
The performance of suitable transmission fluid directly impacts the transmission and its components. Such fluid must meet specific criteria, including international standards like API, ATF Dexron, and SAE. The selected fluid’s viscosity should match the climate conditions of your region and the type of your vehicle’s transmission.
Synthetic transmission fluids often offer better performance and durability but come at a higher price. Other important factors when choosing transmission fluid include selecting a reputable brand, checking the production date, and packaging type. If needed, you can consult Alfaris Auto’s expert advisors via the Contact Alfaris page on their website.
