Transmission fluid is one of the most important parts of every vehicle as it works as a lubricant, cooling agent and hydraulic fluid in the transmission system. It is therefore through the color that the fluid is able to indicate its condition and that of the transmission system as a whole. But what color is transmission fluid supposed to be? New transmission fluid is usually made to be in a bright red color, which is not only eye-catching and can easily grab the attention of anyone but also is very useful in telling that the fluid is new.
The Function of Transmission Fluid
Transmission fluid performs several functions in your vehicle and therefore has a very vital role to play in your vehicle. It also helps in cooling the transmission system as well as lubricates the moving parts that are in the transmission to ensure that they do not overheat. Other than these, it also functions as a hydraulic fluid which helps in shifting gears in the most seamless manner possible. When you put these important roles together, you are left with a product that is absolutely necessary for your car.
Did You Know? The automatic transmission system which requires the use of fluids can be traced back as far as the year 1920s. However, the use of automatic transmissions in automobiles gained popularity in the 1940s.
Now, for the Color Defenders
It is not for an aesthetic purpose that transmission fluid has a color. It is a very useful information for diagnostics. New transmission fluid is red in color as it has been stated above. Why red? Not only is it easily recognizable, but any change in color is a warning sign: It might indicate that the transmission has been contaminated or there is a problem with it. Imagine the transmission fluid that is supposed to be red and clean to the extent of seeing it flow out and being rendered dark brown colour.
Tip: It is recommended that you inspect the transmission fluid from time to time and if you notice any changes in color, then report to the garage immediately. You will be able to identify an issue and deal with it sooner and at a lower cost.
Understanding The Changes in Color
The transmission fluid condition and color changes can be considered as the check engine light of the transmission system. New transmission fluid has the color of red and is transparent. When it is stored for some time or when used, it may change colour to brown or black. This is a warning sign (and yes, I know the joke is crude but it’s difficult to avoid when talking about transmission fluid colors!) and so is any transmission fluid colour change – orange could mean oxidation while a milky colour could point to a coolant leak.
Hint: When in doubt, carry out a comparison with new fluid with the transmission fluid in your vehicle.
Why Transmission Fluid Turns Dirty Brown?
Discoloration in transmission fluid can be as a result of different factors including normal wear and tear to more severe mechanical issues. Over time, the fluid is exposed to heat and friction thus getting a darker color. Also, if the fluid is contaminated with dirt and other particles then its color will also get affected. Also, failure of internal components such as seals can allow other materials into the system which can produce interesting color changes.
Steps for Checking the Fluid
However, before you begin to think that the color of your transmission fluid has changed, it is important to inspect it and its level in the right manner. First of all, it is necessary to find the transmission fluid dipstick, which is usually situated in the engine compartment. After that, the vehicle is started and warmed up, then the dipstick is removed, wiped, reinstalled and then removed once again in order to check the level and the condition of the fluid. That’s rather painless, isn’t it?
What To Do with Discolored Fluid
If you are blessed or cursed with finding stained transmission fluid it doesn’t mean that the sky is falling – but it does mean action. First, you have to refer to the vehicle’s maintenance manual. In case of odd colors, it may be that you need a fluid change or further assessment. It is always advisable to get in touch with a mechanic if you are not sure as to what the discoloration might mean and this will help prevent further damage to your transmission.
| Color | Condition |
|---|---|
| Bright Red | Good – Fresh Fluid |
| Dark Red/Brown | Worn – Needs Change |
| Black | Poor – Requires Immediate Attention |
| Milky | Coolant Leak Symptom |
Burning Questions About Transmission Fluid FAQ:
What causes the transmission fluid to change color? This is because transmission fluid changes colour as it gets old, as well as from the effects of heat and from the metal particles and other materials that it picks up over time.
How often should I check my transmission fluid? It is recommended that you should check your transmission fluid every month or during the oil change time.
Is it safe to continue driving with dark transmission fluid? Although it is still possible to drive with the brown fluid, it is recommended to change the fluid after some time to avoid damaging the system.
Maintaining Your Vehicle’s Health
Transmission fluid color and its condition are very much important in the overall condition of your car. These rather simple checks can help you prevent numerous serious problems and they are worth your while. Ensure that you follow the guidelines provided in the vehicle manual and service it or repair it at intervals.
The next time you open the hood of your car, you will realize that there are many things that your car is trying to tell you through that colored fluid.
In Closing
Knowing the signs of your car, including the transmission fluid color, will help you to act at the right time thus increasing your car’s lifespan. It is not only to get from one place to another but to do it in the best way possible, with safety and with minimum costs.
Frankly speaking, who would have thought that a simple colour could reveal so much about the condition of your vehicle? By the way, don’t forget to check out the other articles that are available in this site to learn more about vehicles.
