Do You Add Transmission Fluid While Car Is Running?

No, you should not add transmission fluid while the car is running.

Adding transmission fluid while the car is running can be dangerous and can cause damage to the transmission. The transmission fluid level should be checked with the engine off and the car in park. If the fluid level is low, it should be added slowly and gradually until the correct level is reached.

Here are some of the reasons why you should not add transmission fluid while the car is running:

• The transmission fluid can be hot and can cause burns if it comes into contact with your skin.
• The transmission fluid can be under pressure and can spray out if the transmission fluid dipstick is removed while the engine is running.
• Adding transmission fluid while the car is running can cause the transmission fluid level to become too high, which can lead to transmission problems.

If you need to add transmission fluid, follow these steps:

1. Park the car on a level surface and turn off the engine.
2. Allow the transmission fluid to cool down for at least 15 minutes.
3. Locate the transmission fluid dipstick and pull it out.
4. Wipe the dipstick clean with a rag.
5. Reinsert the dipstick into the transmission fluid dipstick tube and pull it out again.
6. Check the fluid level on the dipstick. The fluid level should be between the “full” and “add” marks on the dipstick.
7. If the fluid level is low, add transmission fluid slowly and gradually until the correct level is reached.
8. Reinsert the transmission fluid dipstick and check the fluid level again.
9. Repeat steps 7 and 8 until the fluid level is correct.

It is important to check the transmission fluid level regularly and to add transmission fluid as needed.

Checking the transmission fluid level is a simple and inexpensive way to help prevent transmission problems.