How Often Should You Change Your Automatic Transmission Fluid?

Why You Should Never flush your transmission fluid?

And some people warn against performing a flush on a transmission using old, dirty fluid.

The flushing procedure may cause some fluid to move in the opposite direction of normal flow due to eddy currents, which may increase the risk of dislodging debris and causing it to settle somewhere it shouldn’t..

Is it OK to change transmission fluid after 100k miles?

The manufacturer’s maintenance schedule for many automatic transmissions doesn’t call for fresh fluid until 100,000 miles or, with some Ford transmissions, even 150,000 miles. A lot of mechanics say that is too long and that it should be done at least every 50,000 miles.

Is there a warning light for low transmission fluid?

Dashboard Warning Lights: If your transmission fluid temperature is hotter than usual, you will see a warning light on your dashboard. A Burning Smell: A sweet or tart burning smell could indicate improper transmission fluid levels or lack of lubrication on the transmission parts.

What happens if u dont change transmission fluid?

If you don’t change your transmission fluid frequently, the dirty fluid will not serve as an effective lubricant and it won’t disperse heat well. This will cause wear and tear on the clutches and other parts of your transmission.

Does the transmission fluid need to be changed?

That being said, most automatic transmissions run on a fluid interval between 60,000 and 100,000 miles. For this reason, many wait until the 60,000 marker to bring up fluids with your mechanic. Any great mechanic is going to be keeping an eye on this for you anyway during oil changes and other servicing.

Are transmission flushes really necessary?

Many manufacturers recommend a transmission flush every 30,000 miles or 2 years. … Sometimes, if your car is having trouble, you may need a transmission service between the recommended intervals. A transmission flush can extend the life of your transmission.

How do you know if you need a transmission flush?

If the fluid looks dark and opaque, or smells “burnt,” it probably needs to be replaced. When there are symptoms that the transmission isn’t running properly. These may include hesitating when shifting into gear; odd noises; slipping gears; or experiencing vehicle surging forward or backward while driving.

Which is better transmission flush or change?

A transmission fluid change will help to restore your system to good working order and is the cheaper option. It is also a relatively simple task that can be undertaken by vehicle owners. A transmission fluid flush is more costly, but will replace all of the fluid and any contaminants that have built up in the system.

How long should transmission fluid last?

Transmission fluid does need to be changed from time to time, and the most accurate answer to the question is that the fluid will usually last between 30,000 and 60,000 miles. That said, if your vehicle sustains heavy use, you could have to change the transmission fluid in as few as 15,000 miles.

What are the symptoms of low transmission fluid?

Signs of Low Transmission FluidWarning light.Transmission overheating.Difficulty in shifting gears.Transmission fluid leakage.Generation of unusual sounds.Transmission slipping problems.

Is it bad to change transmission fluid on high mileage?

Changing the transmission fluid on a high-mileage car is risky. Don’t do it unless your transmission is running fine and the fluid is first-rate, because it can make transmission failure imminent.

Can I add new transmission fluid to old?

You can just add new fluid without draining some, unless you are replacing what has leaked out. The transmission doesn’t have a plug like the oil pan either, you have to loosen the bolts all the way around the pan and be prepared to replace the gasket when you get ready to close.

What is the cost to change transmission fluid?

The cost of having your fluid changed at a dealer, service center or independent mechanic ranges from $80-$250. The average is around $100.

Does GM recommend a transmission flush?

Customers that complain of shuddering and harsh shifting characteristics in the 8-speed GM transmissions are recommended for a trans fluid flush. As of August 7th, GM dealers should also be flushing all potentially affected new vehicles on the lot.

Can Changing automatic transmission fluid be bad?

As a general rule, if you suspect that you haven’t maintained the transmission well in past, it’s better to just change the fluid and not bother with a flush. That’s because flushing the transmission increases the chance of some gunk getting stuck in the narrow oil channels.

Can flushing transmission cause problems?

Flushing does not cause the transmission to fail but it may speed up the process because it pushed metal particles back through the system. So if I shouldn’t flush – what should I do? Keeping your fluid fresh lengthens its life. Vehicles vary – some have filters, screens, internal filters, etc.