5 things you should not do to protect your car transmission


Posted by: Okenwa Emeka

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Save yourself the cost of having to get a new automatic car transmission! Follow these simple tips on 5 things you should not do to your car transmission and you are good to go!

There are certain tactics we implore in driving but do not know the extent to what damage they can cause to our cars. With an automatic transmission car, you can have a beautiful and seamless driving experience but be careful not to cause damages to your car transmission due to improper use while driving, because you are going to spend a whole lot of money fixing that. 

Automatic transmissions are a very complex unit. The transmission is responsible for sending power to the wheel and unlike the manual system, there is a lot of other components embedded in this one transmission unit like the clutch, torque coverter, gear train, hydraulic controls etc. This is the reason you don't want to get it messed up.

Naijauto.com have listed here things you should not do to protect your automatic car transmission, avoiding damage of any part which will result in the total overhaul of the transmission. We always got your back right? :)

1. Don’t let water into your transmission

Water in the transmission, means trouble as you are at risk of a transmission damage. The smallest amount of water in your transmission fluid can cause permanent damage to your car. Water can get into your transmission when you go through a puddle of water or a case of flooding. Rain water and water from the radiator are also a major issue. If your transmission fluid has a coloration like mixed ice cream flavor, you should take your car to a mechanic immediately.

>>> More details at: Most vulnerable car parts to water & how to protect them


Car transmission system is complex, a minor mistake can ruin it completely

2. Don’t leave your car on “drive” while idling or parked at a spot

When you leave your car transmission in “drive” for too long while idling it generates a lot of heat which can affect the transmission unit. So switch to ‘park” when idling. In park it will not generate as much heat as it would with drive because it’s not engaged with the engine at the time so there is less activity.

Also in switching to park make sure your car has come to a total halt before making the switch. When you switch to “park,” a pin locks the transmission output shaft that connects it to the wheels of your car. But if the car’s still rolling when you make this switch, either the locking pin or the output shaft may break or gradually wear away.


Switch your gear to "park" when idling or parked at a spot

>>> What cost more? See answer here: Does a car use more fuel when idling or starting?

3. Don’t switch to reverse while driving

The sudden switch while in motion will affect other parts of your transmission components and destroy the bearing. It doesn’t even make any sense to do this except you have a lot of money stored up somewhere for a new car transmission.

4. Avoid coasting

When your wheels are not being propelled by the engine even though the car is in motion it is said to be coasting. You don't coast in neutral because the transmission oil is not pumped with enough pressure and it can wear out the bearing.

Also, recent engines are built to save fuel even if the transmission is in "drive." They simply cut the fuel supply when you're going downhill. So no need to let your car run downhill or a slope on “neutral” in a bid to save fuel and damage yet cause greater damage to your car transmission.


Coasting is highly unnecessary

>>> Check these to avoid: 5 deadly mistakes Nigerians often make on the road

5. Change your transmission fluid regularly

Some people believe the automatic transmission fluid (ATF) is supposed to last the lifetime of a transmission. Well, this is true but they question is what is the lifetime of a car transmission? It is safe to do a diagnostic and have it changed after every 60,000 to 80,000 miles. If you do not know how to calculate your car mileage you can go to an auto mechanic workshop and have this checked out.

How much you enjoy your car depends on how you maintain it. Follow these 5 simple steps and remember to always maintain best driving ethics. check for irregularities in your car and have them fixed as soon as you detect them.

Note: not all DIYs should be practiced on your car, there are only a few cases where flushing the transmission really saves, you may be forced to change the whole thing. So for your car transmission issues, visit an auto mechanic!

>>> More handy maintenance tips for Naija car owners and drivers always available on Naijauto.com!

Okenwa Emeka

Okenwa Emeka


Okenwa Emeka is a prolific writer who combines his content creation skills with a strong passion for automobiles to make engaging articles for Naija car lovers. He is a member of the Chartered Institute of Marketing CAM with a diploma in digital marketing. 

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