Do You Let Car Running Addinf Transmission Fluid?

When it comes to adding transmission fluid, there are two schools of thought: those who believe you should let the car run while you add it, and those who believe you should turn the car off.

So, what’s the right answer? Let’s take a look at the arguments for each side.

Arguments for Letting the Car Run

• The transmission fluid will circulate better. When the car is running, the transmission fluid is being circulated by the pump, which helps to distribute it evenly throughout the system.
• The fluid will be heated up to its ideal operating temperature. This is important because the fluid’s viscosity changes with temperature, and it needs to be at the right temperature to provide proper lubrication.
• You can check the fluid level more accurately. When the car is running, the fluid level will be at its highest point, so you can get a more accurate reading on the dipstick.

Arguments for Turning the Car Off

• It’s safer. When the car is running, the engine is spinning and the transmission is engaged, which can be dangerous if you’re not careful.
• It’s easier to avoid spills. When the car is off, the fluid is less likely to spill if you accidentally overfill it.
• You can avoid damaging the transmission. If you add too much fluid to the transmission while it’s running, it can cause the fluid to foam and lose its lubricating properties.

So, What’s the Right Answer?

Ultimately, the decision of whether or not to let the car run while adding transmission fluid is up to you. There are valid arguments to be made for both sides, so it’s important to weigh the pros and cons and make a decision that you’re comfortable with.

However, if you’re not comfortable working on your car, it’s always best to consult with a mechanic. They can help you add the fluid safely and correctly.

Here are some additional tips for adding transmission fluid:

• Check the owner’s manual for your specific car to see if there are any specific instructions on how to add transmission fluid.
• Use the correct type of transmission fluid for your car. This information can be found in the owner’s manual.
• Add the fluid slowly and check the level frequently. Overfilling the transmission can be just as damaging as underfilling it.
• Once you’ve added the fluid, start the car and let it idle for a few minutes. This will help to circulate the fluid and bring it up to its ideal operating temperature.

By following these tips, you can safely and easily add transmission fluid to your car.