Transmission Flush or Fluid Change: Which is Better?

The transmission flush and fluid change are two very different procedures for your vehicle’s transmission.

In this post, we’ll compare the two and explain which is better for you.

A transmission flush is a process of circulating fresh fluid through a vehicle’s transmission system to remove any contaminants that have built up over time.

A transmission fluid change, on the other hand, simply drains the old fluid and replaces it with new fluid.

So, which is better?

In most cases, a transmission fluid change will suffice.

However, if your transmission is particularly dirty or has a lot of mileage on it, a flush may be necessary.

Keep reading to learn more about how each process works and the pros and cons of each option.

transmission flush

Buy Amsoil Transmission and Engine Flush

Transmission Flush vs Transmission Fluid Change

There is a lot of confusion about the difference between a transmission flush and a fluid change.

Both are important for your vehicle, but there are some important things to consider before making a decision between them.

A transmission flush is more thorough than just changing the fluid in your car’s transmission.

It cleans out all of the dirt and debris that may have accumulated over time.

It also lubricates components better than new fluid, which helps prevent future problems with shifting or slipping gears.

A fluid change only replaces what was lost during an oil change.

So if you’ve done one recently and notice that things aren’t working smoothly anymore.

Or worse yet, they’re starting to act up—it might be time for both!

What You Need To Know About Transmission Flush

A transmission flush is a process that uses a special solution to remove the old fluid from your vehicle’s transmission.

The mechanic will typically use a high-pressure hose and compressor.

This extracts what’s left in your transmission after years of sitting there collecting dirt and debris.

The new fluid is then added back into your car’s transmission.

So you’ll want to make sure you get it done as soon as possible after having this service done on your vehicle.

This prevents any damage from occurring when driving home.

A regular maintenance schedule should include having this service performed every 60k miles or six months depending on how often you drive each day.

And it may be worth investing in one of these units if there’s not already one installed in your garage!

What is a transmission flush, actually?

A transmission flush is a process that cleans and inspects your transmission.

It’s important to get this done regularly if you’ve got a lot of miles on your car, or if you’re driving in very nasty weather conditions.

The fluid inside your transmission is designed to give it power when going up and down hills.

But it can become dirty over time, which will cause problems with shifting gears as well as making it harder for the transmission to stay lubricated.

When this happens (and chances are good that it will happen), there are two options…

You can change out all of the old fluid (which involves draining out all at once).

Or flush out just one or two parts at a time over time until everything gets cleaned up properly again.

That too without having too much trouble getting into them later on down the road when t

How Does Transmission Actually FlushWork?

A transmission flush is a process you use to replace the transmission fluid.

This can be done on any vehicle, but it’s more common in older cars and trucks.

Here’s how it works:

Transmission Flush

Buy Amsoil Transmission Flush

Over time, old fluids can damage internal components, including your transmission and other parts of your car or truck.

Transmission fluid change and transmission flush both methods involve changing a specific part of your car or truck’s drivetrain system (engine oil).

There are some important differences between them.

For one thing, a flush doesn’t remove any existing contaminants from an engine.

Instead, it just replaces what’s already been used up by engine operation over time with the new fluid made from synthetic materials.

These include polymers or mineral oils with anti-wear properties similar to those in traditional petroleum products like gasoline.

But they don’t have harmful chemicals added to them either.

This is a major benefit since people don’t want these substances lurking around their cars!

Transmission Flush

How Transmission Flush Is Done?

1. Park your car on a level surface and set the emergency brake.

2. Locate the transmission dipstick and pull it out. Wipe it off with a clean rag and reinsert it. This will help you get an accurate reading of the transmission fluid level.

3. Find the transmission fill plug and remove it with a wrench. You may need to use a socket wrench or breaker bar to loosen it, as it is usually very tight.

4. Insert a long funnel into the opening and pour in new transmission fluid until it reaches the full line on the dipstick. Replace the fill plug and tighten it with a wrench.

5. Start the engine and let it run for a few minutes to allow the new fluid to circulate through the system before checking the level again

How Fluid Change Is Done?

If your transmission is starting to slip or is having issues shifting, you might be considering a transmission flush or fluid change.

But which is the better option?

A transmission flush involves pumping all of the old fluid out of the transmission and then replacing it with new fluid.

This can be a good option if your transmission is severely dirty or damaged.

However, a fluid change is often a better option.

This involves draining the old fluid and then adding new fluid to the system.

This option is less likely to cause damage to your transmission and can be just as effective at cleaning it out.

How Transmission Fluid Flush Can be Done

As you already know, a transmission flush is a fluid change for your car’s powertrain.Engine and Transmission Flush

It involves replacing the old oil with a new gearbox or engine oil.

Also, it involves adding fresh fluids to your car’s cooling system for even better performance.

A fluid flush can be done at home by removing the drain plug from your car’s radiator cap…

And pouring all old coolant into a bucket.

When you finish draining off all its contents, use a funnel to pour in new coolant until there’s only half an inch left in the jug.

And don’t let any air bubbles get in!

This will prevent future leaks from forming due to corrosion caused by prolonged exposure to the air inside our vehicles over time.

How are Fluid Change and Fluid Flush Different?

A fluid change is a process of draining all the old fluid from a car’s braking system and replacing it with fresh, new fluid.

A brake fluid flush is a more thorough process that also includes forcefully removing any debris.

Or contaminants that may be present in the system before adding new fluid.

This ensures that your brakes will be working at peak performance and provides peace of mind knowing that your car is safe to drive.

The fluid change and fluid flush are very different.

The most noticeable difference is that you can only flush your transmission with a special machine.

This is an automatic transmission flush (ATF).

With an ATF, the transmission is completely disassembled, cleaned, and refilled with new fluids.

Once it is done, your car will run better than ever.

This process takes about 20 minutes or so to complete.

Transmission Flush

Buy Amsoil Transmission Flush Amsoil

The Cost of Transmission Flush

It’s important to remember that transmission flush costs vary depending on a few factors.

The most common cost is the labor cost. This ranges from $150 to $200 per hour.

Don’t want to spend money servicing your car at an automotive shop?

There are several DIY alternatives available online!

DIY methods provide similar functionality.

But they are much cheaper than going through traditional channels.

Such as dealerships or independent repair shops…

They’ll charge anywhere from $120 to $280 depending on what kind of parts need replacing.

So keep this in mind when deciding which option would work best for you.

Transmission Flush

Is fluid change less expensive than a flush?

If you’re looking to save money and have your transmission flushed by a certified mechanic, go for it.

If you don’t mind getting your hands dirty and can be done in a few hours, go for the fluid change.

If a transmission flush is more expensive than a fluid change and requires specialized tools (such as a machine), then forget about that option.

You may also want to consider whether or not there will be any additional work required after the initial flush.

If no extra work is necessary, then simply get yourself changed out with new fluids!

Pros And Cons Of Transmission Fluid Change

There are some advantages to doing a transmission flush.

It’s less expensive than a fluid change, so if you have an older car and don’t drive much.

It might be worth considering. You can do it yourself at home with no special equipment or tools required.

This is nice because not everyone has access to professionals who are willing to take their car in for repairs or maintenance.

If your car needs repair work but isn’t worth spending thousands of dollars on…

Then this would be the perfect option since it doesn’t require any major investment—just time (and maybe some elbow grease).

This procedure will also allow you to keep using your vehicle until its next scheduled maintenance appointment without having any issues arise during those times when there’s nothing wrong with its engine yet.

Buy Amsoil Transmission and Engine Flush 

Pros And Cons Of Transmission Flush



Transmission flush can prolong the life of your vehicle.

A transmission flush can prolong the life of your vehicle.

A transmission flush cleans out the transmission and prevents damage to seals and gaskets, which can cause a loss of power or erratic shifting.

A transmission flush will also clean out the transmission, which helps keep it fresh in order to improve performance over time.

When you’re changing your own oil, it’s best not to use cheap synthetic oils with anti-freeze additives.

Synthetic oils are designed for long-life use but may not be ideal for an extended period of time because they can cause corrosion if left sitting around for too long before being replaced with fresh fluid.

And even worse when mixed with conventional gasoline!

To flush or not to flush?

Flushing a transmission is the process of cleaning and rebuilding your transmission fluid.

It can be done in two ways: flush or drain and fill.

A flush is when you take out all of the old transmission fluid, replace it with new transmission fluid, and put everything back together again.

This will not only help you get rid of any dirt or debris that may be stuck inside your engine.

But also help protect against rusting caused by contaminants such as cobwebs or other debris getting into your system.

A drain/fill means taking out all of the existing fluids from within your vehicle’s engine compartment before replacing them with new ones.

This helps prevent damage from occurring due to poor-quality parts (such as leaky gaskets).

Buy Amsoil Transmission and Engine Flush 

When Should You Go for a Transmission Flush?

If you have a leak, if you are having trouble shifting gears, or if the fluid level is low and the color is dark brown or black.

This is a sign of an old transmission.

A transmission flush can help solve these problems by cleaning out debris that accumulates in your transmission.

Should You Consider Doing Both Transmission Flush or Fluid Change?

While a transmission flush does sound like the better option, to be on the safer side, you should do both for your vehicle’s transmission.

While doing so may take some time and effort (and money).

It’s worth it to ensure that everything is working properly before having to deal with any unexpected issues later on down the road.


Fluid flushes and changes are both important car maintenance tasks.

But they’re not the same thing.

A fluid flush means taking all the old fluid out of a system and replacing it with fresh, new fluid.

A fluid change is simply draining some of the old fluid and replacing it with new fluid.

Which one your car needs depends on the age and condition of the vehicle, as well as the type of fluid.

For example, transmission fluid should be changed every 30,000 miles or so.

But you might only need to flush it every 60,000 miles.

Consult your owner’s manual or a professional mechanic to find out what’s best for your car.

Transmission Flush Or Fluid Change: Which Is Better?

There are pros and cons to both transmission flushes and fluid changes.

A transmission flush will remove all of the old fluid and debris from your transmission.

But it can be quite expensive. A fluid change will also remove some of the old fluid and debris, but it will not be as thorough as a flush.

Ultimately, it is up to you to decide which method is best for your vehicle and your budget.


We hope this post could have helped you understand the difference between a fluid change and a transmission flush.

If your car is not working as it should, then this is the best thing to do.

There is no easy answer when it comes to transmission flushes and fluid changes.

Ultimately, it depends on the condition of your transmission, your driving habits, and your budget.

If your transmission is in good condition and you are careful with your driving, then a fluid change may be all that you need.

However, if you have a high-mileage vehicle or do a lot of stop-and-go driving, then a transmission flush may be a better option.

Whichever route you choose, make sure to use fresh, high-quality transmission fluid to ensure optimal performance from your transmission.


View our Profile page and Leave a Review