Do You Add Transmission Fluid When the Car is Running?

The Answer is No

You should never add transmission fluid to your car when the engine is running. This is because the transmission fluid needs to be circulated throughout the transmission in order to properly lubricate and cool the moving parts. If you add fluid while the car is running, it will not be properly circulated and could cause damage to the transmission.

How to Check Transmission Fluid

If you need to check the transmission fluid level, you should do so when the car is parked and the engine is off. Here are the steps on how to check the transmission fluid level:

1. Locate the transmission fluid dipstick. It is usually located near the back of the engine, and it will have a red or orange handle.
2. Pull out the dipstick and wipe it clean with a rag.
3. Reinsert the dipstick into the transmission and pull it out again.
4. Check the fluid level on the dipstick. The fluid should be between the “full” and “add” marks on the dipstick.

How to Add Transmission Fluid

If you need to add transmission fluid to your car, you should do so when the car is parked and the engine is off. Here are the steps on how to add transmission fluid:

1. Locate the transmission fluid dipstick. It is usually located near the back of the engine, and it will have a red or orange handle.
2. Pull out the dipstick and wipe it clean with a rag.
3. Add transmission fluid to the transmission through the dipstick tube.
4. Reinsert the dipstick and check the fluid level. The fluid should be between the “full” and “add” marks on the dipstick.

Conclusion

You should never add transmission fluid to your car when the engine is running. This could cause damage to the transmission. If you need to check or add transmission fluid, you should do so when the car is parked and the engine is off.