Should I Change Transmission Fluid After 100K Miles

Should I change transmission fluid after 100k miles? Yes, you should change transmission fluid after 100k miles. Before this needs to be done, the service intervals for new vehicles can be over 100,000 miles.

Change transmission fluid

Is it Necessary to Change Transmission Fluid After 100k Miles?

The simple answer to this question is yes. Before this needs to be done, the service intervals for new vehicles can be over 100,000 miles. For car owners, this seemingly clear-cut advice presents a bit of a conundrum you may never have to change the transmission fluid on a brand-new vehicle if it is not kept for a long period.

If you plan to keep your car for a long time, or if you bought a used car with high mileage, you’d be wise to factor in the cost of service. It’s necessary to work, no matter what the price. The cost of replacing the transmission fluid is much less than the cost of replacing a transmission that has been neglected due to poor maintenance. Failure to maintain your vehicle’s transmission could leave you stranded and with a large repair bill.

Knowing if your car or truck has been subject to a recall can be accomplished with the help of simple online tools that are easy to use. Because of a past recall, your transmission might need some important repairs—or have an extended warranty—in addition to its regular maintenance.

How Often does the Transmission Fluid Need to be Changed?

Be familiar with your car and its recommended service intervals. The intervals between transmission fluid changes vary widely. Depending on the make and model of the vehicle, the mileage can range from 30,000 miles to more than 100,000 miles. As a result of their almost complete sealing, some new vehicles — especially those with automatic transmissions — have transmissions designed to last the lifetime of their vehicles.

It is important to inspect and/or change the fluid in most CVT (continuously variable transmissions). If you have any questions about your vehicle, we recommend consulting the owner’s manual and keeping a record of any repairs. Transmission fluid, unlike engine oil, should never burn off. A puddle of red liquid on the ground is a telltale sign of a transmission leak.

Types of transmission

Types of Transmission

In vehicles, there are three types of transmissions to choose from.

  1. Manuals Transmission (MT)
  2. Auto Transmission (AT)
  3. Continuously Variable Transmission (CVT)

Manual Transmission

In addition to its other names, manual transmissions use a driver-operated clutch to transfer torque from the engine to the gearbox. Typically, a foot pedal or hand lever is used to engage or disengage the clutch. These are the simplest transmissions, from a mechanical standpoint. Because there is less that can go wrong, they often last the longest. Autos with manual transmissions also tend to have the best fuel economy and are typically a bit cheaper. It has been reported that some drivers enjoy driving them more.

Auto Transmission

It is easier to understand an automatic transmission than a CVT because the car’s gears shift on their own using a fixed ratio of speed and RPM.

Continuous Variable Transmission

An automatic transmission that delivers seamless acceleration through a continuous range of effective gear ratios is called a continuously variable transmission (CVT). It’s also known as a shiftless transmission, steeples transmission, or pulley transmission.

How to Know When to Change Transmission Fluid?

Transmission fluid is one of the most important fluids to monitor in your vehicle. If you should change it, there is no question: Yes, you should. A lot depends on the vehicle’s manufacturer, so it’s hard to say exactly how often this service should be performed.

Manufacturers of automatic transmissions don’t require fresh fluid until 100,000 miles or, in the case of some Ford transmissions, even 150,000 miles, according to their maintenance schedules. This is too long, according to many mechanics. They recommend doing this every 50,000 miles. If your vehicle is equipped with a manual transmission, you’ll need to use conventional gear oil rather than automatic transmission fluid and follow a different maintenance schedule.

  1. Each vehicle’s owner’s manual will tell you when to change the fluid oil, but most of us don’t bother.
  2. While shifting either manually or AT and CVT, the gears are stuck or slip.
  3. It’s time to make some noise!
  4. Acceleration shudder or jerking sensation

This problem can also be diagnosed by checking the vehicle’s fluid oil gauge and from the car’s parking garage, where you can see any oil leakage. If you want your car to run smoothly, change the oil every 40,000 to 50,000 miles. Some brands recommend changing the oil every 60,000 miles, but that’s up to you.

Transmission fluid

Should I Get Transmission Flush or Change?

You should understand the role transmission fluid plays in a car’s operation before attempting to change the fluid. In an automatic or a manual gearbox, transmission fluid helps to cool and lubricate the mechanical components and keep them cool. Small particles contaminate the transmission fluid as the transmission’s interior components wear down over time and the fluid becomes contaminated. There’s a chance that this could cause damage.

It makes sense to get rid of this filthy fluid, right? Go ahead and have your mechanic do it if it’s in the service manual. As long as the gearbox is in good working order, this shouldn’t be a common occurrence. This could be a sign of a much larger and more complex problem, however.

Power-flushing the transmission is a distinct process from simply draining and refilling a transmission. After adding clean transmission fluid to a car with high mileage, power-flushing the transmission fluid can remove sludge and other particles, which can cause the fluid to clog.

When a transmission drain (or flush) is recommended for your particular vehicle, do your homework. Either option is a waste of time and money if done too frequently.

Does Changing Transmission Fluid Improve Performance?

Our vehicles’ fuel economy is a hot topic. When it comes to owning a car, paying for gas is one of the biggest expenses. This is a great way to improve your fuel economy. As a result, your engine will run more smoothly after you change the transmission fluid.

As long as you maintain your car’s transmission, you’ll be able to tell a big difference in the way it runs. In other words, it will be more efficient, use less gas and be more effective with oil. Who doesn’t want a better-running car? Change the transmission fluid is a necessary task for every car owner, regardless of the make or model of the vehicle.

A simple and affordable way to keep your car running at peak performance is to change the transmission fluid in your vehicle. Take your car to the experts at Remac Transmissions and you’ll be done in no time. Keep your transmission in good condition to avoid costly repairs.

How to Check Your Transmission Fluid?

The transmission fluid level is usually checked at a service center because it’s usually done from underneath the car. Your owner’s manual should tell you whether your transmission has a stick for measuring oil in car’s engine that’s easily accessible.

  1. Find out how to check your transmission fluid in your owner’s manual.
  2. For the most accurate reading, park the vehicle on a flat surface.
  3. Many vehicles recommend that the engine and transmission be at operating temperature when checking the transmission fluid.
  4. If the engine is running or not, determine if the fluid is checked. This can affect accuracy.
  5. Check the fluid level by moving the gear selector into each gear for a few seconds before getting out of your vehicle.
  6. Once again, your owner’s manual will help you locate the transmission stick for measuring oil in car’s engine handle, which is typically brightly colored.
  7. Using a clean rag, wipe off the stick for measuring oil in car’s engine, being careful not to spill any fluid on hot engine or exhaust parts.
  8. As soon as you’ve reinserted the stick for measuring oil in car’s engine, you should be able to see the fluid level, which should be between the low and full marks.
  9. Be sure to use the recommended transmission fluid when refueling and to fill it to the appropriate level.
  10. Replacing the stick for measuring oil in car’s engine is easy.

There may also be particles or other debris in the transmission fluid, which would indicate that it needs to be changed. You may be asked to pay extra for a transmission fluid change or flush when you take your vehicle in for an oil change or other routine service. However, just because the fluid is darker than usual does not necessarily mean that it needs to be replaced. Your vehicle’s owner’s manual contains a maintenance schedule that you should review before making a decision. Your shopping time will be extended as a result.

Can Change your Transmission Fluid Cause Damage?

Fluid for transmissions is important for lubricating moving parts and reducing friction and heat wear. Your transmission may slip if you don’t change the fluid often enough. The best way to extend the life of your transmission is to change your transmission fluid frequently. In addition, if you don’t change your transmission fluid frequently, the dirty fluid won’t serve as an effective lubricant and won’t effectively dissipate heat.

Other transmission parts will be worn out as a result of this. The old fluid may be all that’s left to keep your clutches engaged and your transmission from slipping once the clutch packs have lost their grip on the transmission. Make sure your transmission fluid is changed or flushed according to the owner’s manual to prevent damage to the transmission. As there is a wide variety of transmission fluids on the market with varying viscosities, you can also consult your owner’s manual.


1. How often is it safe to change the transmission fluid?

It’s risky to change the transmission fluid in a car with a lot of miles. Because it can make transmission failure imminent, don’t do it unless your transmission runs well and your transmission fluid is top-notch.

2. Why should I change my transmission fluid if I don’t?

The transmission fluid should be changed when it is recommended. The transmission can shift improperly or not at all if the transmission fluid is allowed to run low in your vehicle. Your transmission’s internal parts, which will not be properly lubricated, may also be damaged.

3. When should I change the transmission fluid?

Manual transmission fluid should be changed every 30,000 to 60,000 miles, according to most manufacturers. Some manufacturers recommend changing transmission fluid every 15,000 miles for heavy-duty vehicles. Typical service intervals range from 60,000 to 100,000 miles, depending on the model. It is not harmful to change it more often.

4. Should I flush my transmission or replace it?

Transmission fluid flushes, on the other hand, remove and replace all of the old transmission oil and replace it with new, clean transmission oil. Every 60,000 miles, mechanics recommend a full flush.

5. Have you ever changed the transmission fluid in your vehicle?

Your vehicle has more than 100,000 miles on it, but you have never changed the transmission fluid. Should you change it now? Do not expect a fluid change to solve all of your car’s mechanical problems, such as gear slipping, rough shifting, or other mechanical problems.

6. Is it worth it to have your transmission flushed?

It is NOT necessary to flush the system after 46,000 miles under normal driving conditions. It’s because they’re profitable that they recommend them. In general, transmissions last for 100,000 miles before they need to be serviced. Fluid draining and refilling are the two debatable methods of maintenance.

7. When changing the transmission fluid, do I also need to replace the transmission fluid filter?

On the stick for measuring oil in car’s engine of some automatic transmissions, there is only a screen to filter out casting flaws or debris that could be poured down it. As a result, certain manufacturers do not recommend changing the air filter. On a healthy transmission, the filters do not clog up.

8. When should I change my transmission fluid?

Manufacturers of automatic transmissions don’t require fresh fluid until 100,000 miles or, in the case of some Ford transmissions, even 150,000 miles, according to their maintenance schedules. The average vehicle should be serviced every 50,000 miles, according to some mechanics.

9. You put too much transmission fluid in your vehicle. What happens?

As a result, if you fill your transmission with too much fluid, pressure builds inside the transmission. As a result of the increased pressure, air can enter the fluid. You could lose your ability to shift while driving as a result of this overheating.

10. Is there a way to remove transmission fluid?

It is best to remove the cooler return hose and place it in a bucket of fresh transmission fluid. Transmitter fluid should be clear or nearly clear after several runs through the gears.


Transmission problems are one of the most common car problems that people encounter. To keep your car running and power your vehicle, transmission is essential. Due to a simple lack of knowledge, many people do not get regular maintenance on their transmission. In the beginning, everything was fine. Then, one day, the car wouldn’t start because of transmission problems. Take your transmission very seriously as a car owner and have it serviced regularly by a qualified mechanic. You can extend your car’s life by changing the transmission fluid, which is one of the most basic ways to do so.

Related Articles

Ford Ranger Manual Transmission Fluid Check
Jeep Wangler Automatic Transmission Fluid Check
Mode of Transmission