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This article was co-written by Mike Parra. Mike Parra is a mechanic in Arizona. He holds an ASE certification, an AA degree in auto repair technology and has over 20 years of experience as a mechanic.
This article has been viewed 32,235 times.
The automatic transmission system in your car is one of the hydraulic systems in your car. To maintain the system, you must check the transmission oil periodically to make sure it is full and of good quality so that the transmission can operate properly. Continue reading this article to learn how to check and change the oil of an automatic transmission system.
- In rear-wheel drive vehicles, the dipstick is located at the back of the engine, above the oil tank.
- In front-wheel drive vehicles, the dipstick is usually located at the front of the engine, connected to the transmission. [1] X Research Source In most cars, it will be to the right of the oil tank.
- Normally, you don’t have to add gear oil. If the oil level drops significantly below the “Extra” and “Low” lines, your system probably has a leak and you will need to have your vehicle repaired.
- If the transmission oil is dirty brown or smells like burnt bread, it means the oil has meaninglessly burned itself and cannot dissipate the heat generated by the transmission. The oil can be checked more closely by placing several clean sheets of paper and waiting for about 30 seconds to see if the oil has splattered. Otherwise, the oil must be changed immediately, or the transmission itself has suffered serious damage.
- If the transmission oil is milky brown, it has been contaminated by the radiator coolant leaking out and entering the automatic transmission’s oil cooler. Get your car repaired right away.
- If the transmission oil foams or bubbles, there is too much oil in the cylinders, or you may be using the wrong type of transmission oil or the engine has a clogged transmission vent.
- When driving for the first time, you will need to add 3.5 to 4.5 liters of transmission oil if you have completely changed the engine and started like new. [2] X Research Source If not, check the dipstick regularly to avoid overfilling the oil trough.
- If you are simply filling with oil, you only need to add about 1 liter or less.
- If you replace the entire oil pan and start like new, you may have to add between 4.5 and 13.5 liters, depending on the make and model.
Advice
- Check the owner’s manual for when it’s time to change the automatic transmission oil. If you often drive off-road or pull heavy trailers, you will have to change the transmission oil more often. Whenever you change the transmission oil, you also need to change the automatic transmission oil filter.
- Always use gear oil specifically for your vehicle model recommended by the car manufacturer
Warning
- If you see slick, red oil on the road, your transmission oil is leaking. If you have checked the leak but can’t see it, put a blank sheet of paper under the car, it will be easier to see the leak.
Things you need
- Automatic transmission oil
- The hopper is designed to fit the transmission oil pipe
- Rags or tissues
This article was co-written by Mike Parra. Mike Parra is a mechanic in Arizona. He holds an ASE certification, an AA degree in auto repair technology and has over 20 years of experience as a mechanic.
This article has been viewed 32,235 times.
The automatic transmission system in your car is one of the hydraulic systems in your car. To maintain the system, you must check the transmission oil periodically to make sure it is full and of good quality so that the transmission can operate properly. Continue reading this article to learn how to check and change the oil of an automatic transmission system.
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