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When transmission fluid is black

Transmission fluid is the lifeblood of your car's transmission. It keeps all the moving parts working together smoothly and helps to prevent overheating. Over time, though, it can become dirty and need to be replaced. If you're wondering when to change your transmission fluid, the answer is simple: when it's black. Black transmission fluid is a sure sign that it's time for a change. In this blog post, we'll explore why this is the case and what you can do to prolong your transmission fluid's life.

trnasmission service availabe (1)

trnasmission service availabe (1)

In this post, we will discuss When transmission fluid is black?

What is transmission fluid?

Transmission fluid is the oil used to lubricate and cool the moving parts inside your transmission. Over time, heat and friction can break down the transmission fluid, causing it to turn black. When this happens, it's time to replace the transmission fluid.

What does it do?

Transmission fluid is what helps your car to shift gears. If the liquid is black, it is dirty and needs to be replaced.

Why is black transmission fluid wrong?

If your car's transmission fluid is black, it's time to change. Black transmission fluid indicates degradation and means the fluid is no longer doing its job correctly. Transmission fluid breaks down over time and becomes less effective at lubricating and cooling the transmission. This can lead to transmission problems, such as slipping or not shifting gears properly. If you continue to drive with black transmission fluid, it could cause severe damage to your transmission and require expensive repairs.

How to change your transmission fluid

Your car's transmission is a vital part of its overall performance, and changing the transmission fluid is essential to regular maintenance. Here's a step-by-step guide on how to change your transmission fluid:

1) Warm up your car. This will help the new fluid flow through the system more efficiently.

2) Jack up your car and remove the drain plug from the transmission pan. Drain the old fluid into a catch basin.

3) Clean the transmission pan with a degreaser and a rag. This will remove any dirt or debris that could contaminate the new fluid.

4) Replace the transmission filter (if equipped). A dirty filter can restrict fluid flow and cause premature wear.

5) Refill the transmission with new fluid. Check your owner's manual for the specific type and amount of fluid recommended for your car.

6) Start the engine and check for leaks. If everything looks good, take your car for a test drive to ensure the new fluid is circulating correctly.


If your transmission fluid is black, it's time for a change. Although you may not see the difference, transmission fluid should be red. If it's black, it's been contaminated and needs to be replaced. Not only will this help your car run more smoothly, but it will also extend the life of your transmission.

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