Checking Transmission Fluid: Car Running or Not?

Checking transmission fluid is an important part of maintaining your vehicle. It helps to ensure that your transmission is operating properly and can prevent costly repairs down the road. But when it comes to checking transmission fluid, there is some debate about whether the car should be running or not.

Checking Transmission Fluid with Car Running

Some people believe that checking transmission fluid with the car running is the best way to get an accurate reading. This is because the transmission fluid is circulating through the system when the car is running, which gives you a better idea of its condition.

To check transmission fluid with the car running, follow these steps:

1. Park the car on a level surface and engage the parking brake.
2. Start the car and let it idle for a few minutes.
3. Open the hood and locate the transmission dipstick.
4. Pull out the dipstick and wipe it clean with a rag.
5. Reinsert the dipstick into the transmission and pull it out again.
6. Check the level of the transmission fluid on the dipstick. The fluid should be between the “full” and “add” marks on the dipstick.

Checking Transmission Fluid with Car Not Running

Other people believe that checking transmission fluid with the car not running is the best way to get an accurate reading. This is because the fluid will be more settled when the car is not running, which can make it easier to see the level.

To check transmission fluid with the car not running, follow these steps:

1. Park the car on a level surface and engage the parking brake.
2. Turn off the car and wait a few minutes for the fluid to settle.
3. Open the hood and locate the transmission dipstick.
4. Pull out the dipstick and wipe it clean with a rag.
5. Reinsert the dipstick into the transmission and pull it out again.
6. Check the level of the transmission fluid on the dipstick. The fluid should be between the “full” and “add” marks on the dipstick.

Which Method Is Better?

There is no definitive answer to the question of whether it is better to check transmission fluid with the car running or not. Both methods have their own advantages and disadvantages.

Checking transmission fluid with the car running gives you a more accurate reading of the fluid’s condition, but it can be more difficult to do.

Checking transmission fluid with the car not running is easier to do, but you may not get as accurate a reading.

Ultimately, the best way to check transmission fluid is the way that you are most comfortable with. If you are not sure which method to use, consult your vehicle’s owner’s manual.

Additional Tips

Here are a few additional tips for checking transmission fluid:

* Check the transmission fluid regularly, according to your vehicle’s maintenance schedule.
* If the transmission fluid is low, add more of the same type of fluid.
* If the transmission fluid is dark or smells burnt, it may be time to have the transmission serviced.
* If you have any questions about checking transmission fluid, consult your vehicle’s owner’s manual or a qualified mechanic.