9621 Agnes Crossing, Lake Suzanneview, New Mexico Island 84604-9295.
Many car owners know that the lifespan of this type of transmission directly depends on the correct level of working fluid in an automatic transmission, also called ATF.
Every owner of a car with a classic automatic transmission with torque converter should clearly understand that it must contain a strictly defined amount of “oil” – ATF. No more and no less! When this fluid is not sufficient and its level is below the required level, the temperature regime of the machine is disturbed. Overheating significantly shortens the life of any mechanism, and automatic transmission is no exception in this sense. In addition, when the oil level in the machine is low, the pump begins to collect air along with the fluid.
It is whipped into an emulsion, saturated with gas bubbles. This changes its physical properties – it becomes easily compressible. The pressure in the system drops, causing a symptom called “lost transmission.” The emulsion lubricates the parts and components of the “automatic machine” much worse and does not remove heat from them well. Overheating and wear caused by air bubbles in the oil quickly kill the automatic transmission.
Too much ATF in the gearbox is no less harmful than too little. When the oil level is too high, the rotating parts of the gearbox engage the surface and foam the fluid. An emulsion is formed – with the consequences described above. But since we have an excess of working fluid, foam formation additionally results in a sharp increase in volume. The excess begins to loosen and the unit’s housing is flooded with ATF.
How to check the oil level in the automatic machine to assess the need for refilling? First of all, you should know that it is strictly forbidden to check the oil level in the automatic transmission according to the same principles as in the engine. There is not one level range on the automatic transmission dipstick, but two. The one higher is usually labeled as warm, and the one lower is cold. That is, the top of the dipstick is logically designed to control the ATF level on a warm “box”, and the bottom is needed when it is cold. But there is one nuance that can greatly disorient a not particularly knowledgeable car owner who decides to check the oil in the automatic transmission.
After deciding to check the ATF level, he approaches the car one morning, takes out the dipstick and sees that the fluid is at a hot level. But the car is cold! It is wrongly concluded that there is too much oil in the gearbox, the transmission is in danger, the fluid urgently needs to be drained… There is another option. They start the car, measure the amount of ATF and discover that the fluid is in the cold range – while the transmission is running! Another incorrect conclusion is drawn: the oil level is low and urgently needs to be topped up.
If you add and drain oil in the situations described above, the “automatic machine” is indeed in danger of sudden death! The fact is that the ATF level check is carried out exclusively while the engine is running. And yes: if the gearbox has not warmed up, the oil should really be at the cold mark. And after 20-30 minutes of driving (after warming up) it “crawls” to the hot level. This should be taken into account if you decide to check the level in the automatic transmission.
Every owner of a car with a classic automatic transmission with torque converter should clearly understand that it must contain a strictly defined amount of “oil” – ATF. No more and no less! When this fluid is not sufficient and its level is below the required level, the temperature regime of the machine is disturbed. Overheating significantly shortens the life of any mechanism, and automatic transmission is no exception in this sense. In addition, when the oil level in the machine is low, the pump begins to collect air along with the fluid.
It is whipped into an emulsion, saturated with gas bubbles. This changes its physical properties – it becomes easily compressible. The pressure in the system drops, causing a symptom called “lost transmission.” The emulsion lubricates the parts and components of the “automatic machine” much worse and does not remove heat from them well. Overheating and wear caused by air bubbles in the oil quickly kill the automatic transmission.
Too much ATF in the gearbox is no less harmful than too little. When the oil level is too high, the rotating parts of the gearbox engage the surface and foam the fluid. An emulsion is formed – with the consequences described above. But since we have an excess of working fluid, foam formation additionally results in a sharp increase in volume. The excess begins to loosen and the unit’s housing is flooded with ATF.
How to check the oil level in the automatic machine to assess the need for refilling? First of all, you should know that it is strictly forbidden to check the oil level in the automatic transmission according to the same principles as in the engine. There is not one level range on the automatic transmission dipstick, but two. The one higher is usually labeled as warm, and the one lower is cold. That is, the top of the dipstick is logically designed to regulate the ATF level on a warm “box”, and the bottom is needed when it is cold. But there is one nuance that can greatly disorient a not particularly knowledgeable car owner who decides to check the oil in the automatic transmission.
After deciding to check the ATF level, he approaches the car one morning, takes out the dipstick and sees that the fluid is at a hot level. But the car is cold! It is wrongly concluded that there is too much oil in the gearbox, the transmission is in danger, the fluid urgently needs to be drained… There is another option. They start the car, measure the amount of ATF and discover that the fluid is in the cold range – while the transmission is running! Another incorrect conclusion is drawn: the oil level is low and urgently needs to be topped up.
If you add and drain oil in the situations described above, the “automatic machine” is indeed in danger of sudden death! The fact is that the ATF level check is carried out exclusively while the engine is running. And yes: if the gearbox has not warmed up, the oil should really be at the cold mark. And after 20-30 minutes of driving (after warming up) it “crawls” to the hot level. This should be taken into account if you decide to check the level in the automatic transmission.
Source: Avto Vzglyad
Donald Salinas is an experienced automobile journalist and writer for Div Bracket. He brings his readers the latest news and developments from the world of automobiles, offering a unique and knowledgeable perspective on the latest trends and innovations in the automotive industry.
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