Do You Leave Car Running While Adding Transmission Fluid?

1. Introduction

Adding transmission fluid is a relatively simple task that can be done at home with a few basic tools. However, there is some debate about whether or not you should leave your car running while adding fluid. In this article, we will discuss the pros and cons of each approach and help you decide what is best for you.

2. Pros of Leaving Car Running

There are a few benefits to leaving your car running while adding transmission fluid.

• It helps to circulate the fluid. When you add fluid to a running engine, the fluid is circulated throughout the transmission. This helps to distribute the fluid evenly and ensures that it reaches all of the components that need it.
• It helps to prevent air from getting into the system. When you add fluid to a stopped engine, air can get into the system through the dipstick tube. This air can cause problems if it is not removed before you start driving.
• It can help to save time. If you leave your car running, you can add fluid and check the level all at the same time. This can save you time in the long run.

3. Cons of Leaving Car Running

There are also a few drawbacks to leaving your car running while adding transmission fluid.

• It can be dangerous. If you are not careful, you can get burned by the hot engine or moving parts. It is also important to be aware of the exhaust fumes, which can be harmful.
• It can cause damage to the transmission. If you add too much fluid, it can cause the transmission to slip or shudder. This can damage the transmission and lead to costly repairs.
• It can waste fuel. Leaving your car running while you add fluid wastes fuel.

4. Conclusion

So, should you leave your car running while adding transmission fluid? The answer to this question depends on your individual circumstances. If you are comfortable with the risks involved and you want to save time, then leaving your car running may be a good option for you. However, if you are concerned about safety or you want to avoid the potential drawbacks, then it is best to add fluid with the car turned off.

5. Additional Tips

Here are a few additional tips to keep in mind when adding transmission fluid:

• Always consult your owner’s manual before adding fluid. The owner’s manual will tell you the type of fluid to use and how much to add.
• Use a funnel to add fluid. This will help to prevent spills and messes.
• Check the fluid level after adding fluid. The fluid level should be between the “full” and “add” marks on the dipstick.
• If you are unsure about how to add transmission fluid, take your car to a mechanic. A mechanic can add fluid for you and ensure that it is done correctly.