Checking transmission fluid while the car is running can be dangerous for drivers who are not familiar with what they are doing. Transmission fluid should always be checked when the vehicle is in neutral and off, but changing transmission fluid while the car is running can damage vital parts of your engine as well as make it difficult to diagnose issues correctly. Learn more about the dangers of checking transmission fluid while driving so you can avoid these problems!

Transmission fluid is designed to be a specific color and consistency, but it can become discolored due to normal wear and tear. Darker fluid is caused by heat and typical usage, which leads to the transmission fluid oxidizing.

Depending on the type of transmission fluid you use, it may become discolored over time. If your car is running, you can see this change in color by checking the level of your transmission fluid. If it is dark or murky, this could mean that there are too many impurities in it. The darkening will happen primarily when the car has been idling for a long period of time.
This can be due to oxidation in the fluid (when oxygen molecules attach themselves to organic materials). When this happens inside your transmission system, it can cause damage and shorten its lifespan significantly.

Transmission fluid should be clear or red in color for the best performance in most vehicles. If you see that your transmission fluid is brownish in color, you can bring your vehicle into a trusted mechanic who can examine your vehicle and help resolve the issue.

You should be able to tell if your transmission fluid is oxidized by looking at it. Oxidation can cause the liquid to turn brown or black, which is not normal. If you see that your transmission fluid is brownish in color, you can bring your vehicle into a trusted mechanic who can examine your vehicle and help resolve the issue.
If you're unsure whether or not this problem needs to be fixed immediately, consider having a professional analyze what's causing it and how much time will be needed for repairs before deciding on a solution.
Read More: https://autoremedy365.com/disadvantages-of-checking-transmission-fluid-while-the-car-is-running/