Is It Safe To Change Transmission Fluid On High Mileage?

Why You Should Never flush your 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..

Should I change my transmission filter?

Most car manufacturers recommend that you change the transmission filter every 30,000 miles or every two years–whichever comes first. When changing your transmission filter, you’ll change the transmission fluid and transmission pan gasket as well.

Should I change my transmission fluid after 200k miles?

And for the love of god don’t flush it! At 200k miles it is entirely possible the tranny fluid has a bunch of the friction material in it that helps ensure your transmission still works. Drain the fluid and you may lose that friction material.

Should I change transmission fluid after 150k miles?

The ATF today are engineered and road tested for ~150k, the exact upper limit is debatable due to environmental factors. So you do need to change the ATF if you keep the car over that mileage. Changing it under 100k in normal driving maybe overkill. Also you can’t judge the condition of the oil just by the dark color.

How many miles do automatic transmissions last?

200,000 milesTime and mileage vary between car drivers and how they use or abuse their transmissions. Still, typical automatic transmissions last around 150,00 to 200,000 miles or approximately 7 years.

How do you know if you need a transmission flush?

When to Flush: 4 Most Common Signs of a Troubled TransmissionGrinding and Strange Noise. When a transmission becomes bogged down with dirt, grease and other debris it may begin to show signs similar to that of low transmission fluid levels. … Hard to Shift Gears. … Slipping Gears. … Vehicle Surge.

How much should a transmission fluid change cost?

Additionally, the cost to have your transmission fluid changed by an auto mechanic in a show, an auto dealer, service center or private mechanic can range from $80 to $250. The average cost for both automatic and manual transmissions is around $100.

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.

Does Ford recommend transmission flush?

No, that’s because most new Fords are equipped with a lifetime transmission filter so usually changing the transmission filter is not recommended. … Do I need an appointment for an Automatic Transmission Flush? No appointment necessary.

Should I 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.

How many miles do you have to change transmission fluid?

60,000 milesMost manufacturers recommend replacing transmission fluid every 30,000 to 60,000 miles. If you tow, or do mostly city driving with constant changes of gears, it may be wise to change your ATF even more often. Here’s why. Your automatic transmission has a lot of moving parts.

Why does my transmission slip after fluid change?

If the valve body gets all gunked up with transmission fluid that’s damaged, the driver could lose the ability to shift between gears. And that’s why so many people believe that changing old transmission fluid can cause it to slip.

Can a transmission flush hurt your transmission?

It needs to be done correctly to ensure the result you want. If it’s done correctly, a transmission flush will not harm your car, however. If it’s necessary, it will improve the overall function of your transmission and will be a benefit to the longevity of your vehicle.

Is it bad to flush transmission fluid?

It needs to be taken out and washed. They don’t do that when it’s flushed. Transmission fluid is highly detergent which can wash the varnish off clutches, causing it to slip. Pressure flushing can cause aging seals to start leaking.

Should I get a 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.

Can changing old transmission fluid be bad?

You might take chances with transmission oil change but don’t flush the system. If no problems crop up after oil change, then congratulations you have increased the life of your transmission. But a lot can go wrong if you change the transmission oil of a high mileage engine.