Manual transmissions are the simpler form of transmission, unlike automatic with multiple clutch plates, gearbox fluid, and complex engineering. Manual transmission boxes are simple pieces of engineering operating on gears.
This is why, compared to an automatic transmission, manual generally lasts way longer. However, the lifespan of any transmission depends on a few factors.
Factors like driving style, condition you are driving in, vehicle type, maintenance, stress on the transmission, payload, etc. But, if the conditions are the same, which transmission will last longer? Manual or automatic?
In this article, I will compare both transmissions. Understand their differences, learn about factors affecting their lifespan. And see what makes manual transmission more durable than automatic.
Does Manual Transmission Last Longer than automatic?
Manual transmission lasts longer than automatic transmission. In the hands of a decent driver, a manual transmission can last longer than the vehicle itself – 155.000 miles (250.000 km) and manual transmission about 75.000 miles (120.000 km).
However, the lifespan of a manual transmission depends a lot on the way it is used. An inexperienced driver can cause a fault in the gearbox within a year of driving. Then there are 10-year-old Honda civics that have never shown any transmission fault ever.
What also matters is the purpose it is used for. If the transmission is being used in trucks working in mountain areas or in cars being driven in the city traffic where the clutch is constantly in use, it would drastically reduce the lifespan of a manual transmission.
On the contrary, manual transmission cars driving on highways with few stops and goes would show fewer faults. All of which depends on the wear and tear of the synchros and clutch plates.
Then again, in similar conditions, a manual WILL outperform an automatic transmission in terms of lifespan.
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Why Do Manual Transmissions Last Longer?
Manual transmissions last longer than automatic transmissions because of the way they’re built. The manual transmission contains fewer elements, which means it’s less complex and more likely to work longer.
An automatic transmission is designed to provide a hassle-free driving experience. To do so, a lot of complex processes happen in the background.
For starters, to change the gear, the automatic transmission uses fluid pressure using automatic transmission fluid, which also works as a lubricant and a coolant. The fluid has multiple passages to move and can potentially get blocked due to gunk. One single blockage can render the whole transmission useless.
The automatic transmission also relies on friction clutches for changing gears, which eventually wears out. Since it all is automatic, drivers have no control over the wear and tear of the parts.
An automatic transmission also has multiple clutches, hydraulics, valves, pumps, and many smaller parts. It means that more things can go wrong with it.
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Compared to this, the manual transmission is more like a big block. Inside this block, you have a bunch of gears, synchros, and bearings working together to deliver power. Since most operations are done manually, no hi-end technology is needed.
The power to the wheels is sent through the engine via heavy-duty gears. These gears are interlinked and fixed at their place. With movement happening in only two directions, not much wear and tear goes on.
The manual transmission also has one big clutch for all gears, which is the only party that usually wears out due to bad driving after the synchros. For as long as the clutch is properly used with the gearbox and a regular oil change is made, there is no reason for a manual to show any fault even after years of use.
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How Long Do Manual And Automatic Transmission Usually Last?
The lifespan of both transmissions depends on the way it is used. But in some conditions, you can expect an automatic to last 7 years. In comparison, a manual can last up to 10 years without any major repairs.
A manual needs a transmission fluid change every 30.000- 60.000 miles (48.000-96.000 km). For an automatic transmission, fluid change is required between 60.000-100.000 miles (96.000 km to 160.000 km).
But at the same time, an automatic can’t run after 150.000 miles (240.000 km) without any rebuild. That is because the extreme heat produced inside an automatic significantly affects the gearbox. Whereas in the manual, you only worry about wear and tear.
With a higher frequency of oil change and maintenance, manual transmissions suffer less wear and tear. Regular oil changes also remove contaminants and help in smoother operation.
And if things go sideways, repairing manual transmission is also way easier and can be done by yourself. However, opening and fixing an automatic is not a feat every mechanic can perform.
Even the spare parts for manuals are cheap and accessible. And with simple design, repairs can be performed after a few youtube videos. For an automatic, however, you would need a mechanic and a bunch of expensive parts.
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What to Do to Make Your Manual Transmission Last Long?
To make your manual transmission last longer, you have to: avoid downshifting irregularly, learn to rev match, avoid riding on the clutch, practice proper driving techniques, and change the oil regularly.
Now, let’s talk about more about it.
Avoid downshifting irregularly
The way to prolong your transmission is to reduce the wear and tear while putting minimum stress on it. Downshifting irregularly, as in going from the 5th gear to 2nd at a corner, is one such thing you should avoid.
Doing so not only puts a load on both the engine and transmission. It also increases the overall friction in the transmission.
Learn to rev match
Rev matching is a practice in which, when changing gears, you try to match your engine revs. This takes away unwanted stress and reduces friction among the synchros. It is good to practice rev-matching, especially while downshifting.
Since your engine is going at certain revolutions and the transmission, as you press the clutch, both decouple and suddenly have different revs due to gear change. Not matching the revs would cause strain on the engine, clutch, and transmission with forwarding jerks.
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Don’t ride on your clutch
Clutches are the reason behind smooth shifts. Apart from the synchros, they are the ones that take the most beating. Using them constantly would wear them out quickly.
So, You should always lift your foot off the clutch completely while accelerating. Then, at stop signs, put your car in neutral rather than holding the clutch.
Practice proper driving technique
Proper driving techniques like regular acceleration, proper shifting, no random braking, and excess use of engine braking. All this can help prolong your manual transmission life.
Change the oil regulary
Like I said before, changing your oil after 30.000 miles will be benefitial for your manual transmission.
Automatic Transmissions Can Last Longer if…
To extend automatic transmission lifespan, you should: keep your transmission fluid checked, maintain your engine cooling system, avoid towing and stop changing gears while moving.
Keep your transmission fluid in check
Transmission fluid has many tasks to perform. It works as a lubricant, a coolant, and, at the same time, helps in shifting gears using pressure.
Lack of transmission fluid in an automatic not only increases wear/tear and produces unwanted heat. But also affects the gear change due to lack of fluid pressure. Therefore, keeping your ATF in check should always be a priority.
Maintain your engine cooling system
The engine cooling system not only cools the engine but also cools the transmission fluid, which in turn cools down the automatic transmission.
A malfunctioning cooling system would lead to unwanted heat that can harm the soft parts of both the engine and transmission.
Unlike manual transmission, where we can stick to lower gears for higher torque. Automatic switches by themselves depending on the revs. Towing any payload increases the strain on the transmissions, which keeps rising at higher speeds.
No changing gears while moving
While you have only 3 gears to change in an automatic, changing from drive to reverse while still on the move is not good practice. Because it puts more load on the transmission leading to a major problem in the future.
In this article, I explain how much you can expect to pay for a transmission replacement.
How Much Will You Pay if Your Manual vs Automatic Transmission Breaks Down?
If a manual transmission breaks down, depending on what is damaged, you can pay up to $1000-$1500. That is if you need rebuilding at a mechanic shop. If your car needs a transmission replacement, expect anywhere between $2000-$3500.
Manual transmissions are cheaper to maintain. They have a simple design with easily available spare parts, which allows owners to perform repairs themselves.
Automatics are complex, and repairing them is hard. On average, repairing automatic costs around $1000. Getting remanufactured can go from $2000 to $4000. CVTs are even costlier, averaging around $3000.
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Top 5 Cars with Long-Lasting Manual Transmission
There are plenty of manual cars in the market. There are a few cars with insanely durable manual transmission ever. Some of these cars are:
- Porsche 911 GT3 RS
- Honda Civic Type R
- Audi R8
- Mazda MX-5
- Ford Puma
Top 5 Cars with Long-Lasting Automatic Transmission
With newer techs, the automatic transmission is getting even better. And here is the list of 5 long-lasting automatic transmissions.
- Audi R8 S Tronic
- Porsche 911 PDK
- Tesla Model S
- VW Polo DSG Automatic
- Mercedes S-class 9G Tronic
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