ATF & CVT
Most drivers are comfortable with the variations between both manual and automatic transmission when it comes to transmissions. Manual transmissions rely on the driver’s feedback to choose the proper gear for the desired speed. Automatic transmission fluids, on the other hand, has greater convenience by changing gears automatically based on inputs such as vehicle rpm, throttle position, and engine revolutions.
Automatic transmissions are the most popular alternative among drivers’ easiness of use and comfort. Almost every model also comes with either a traditional automatic transmission or a CVT, which works similarly to a traditional automatic.
ATF (Automatic Transmission Fluid) & its Applications
An automatic transmission, also known as an auto, self-shifting transmission, or AT, replaces the friction clutch with a fluid coupling, which allows for gear shifts by hydraulically locking and releasing a series of planetary gears. These systems have a predetermined gear selection and, in many cases, a parking pawl that locks the transmission’s output shaft to prevent the car from moving forward or backward.There are a lot of gears in this system, so Auto Transmission fluid is crucial to provide a lot of lubricants and reduce as much friction as possible when the engine is driving.
Contrary to its name, car gearbox oil is called ATF : Automatic Transmission Fluid. Automatic Transmission Fluid Which is often red in color and has much more endurance and power than engine oil and in some cases also has hydraulic properties.
In some automatic gearboxes, the type of Continuous Variable Transmission is known as CVT, and of course ATF and CVT can be according to the car manufacturer's recommendations and subject to the car manufacturer's standards.
For example, BENZ ATF oil is very different from FORD or GENERAL MOTOR ( GM), MARCON, VW, MB, HYUNDAI, KIA, TOYOTA gearbox standards Due to the importance and type of automatic gearboxes, some produced oils have a lifespan of at least 100,000 km
Automatic transmission fluid (ATF) is a kind of transmission fluid used in vehicles with self-shifting or automatic transmissions. It is typically coloured red or green to distinguish it from motor oil and other fluids in the vehicle.
The fluid is optimized for the special requirements of a transmission, such as valve operation, brake band friction, and the torque converter, as well as gear lubrication.
ATF is also used as a hydraulic fluid in some power-assisted steering systems, as a lubricant in some 4WD transfer cases, and in some modern manual transmissions.
There are many specifications for ATF, such as the General Motors (GM) DEXRON and the Ford MERCON series, and the vehicle manufacturer will identify the ATF specification appropriate for each vehicle. The vehicle's owner's manual will typically list the ATF specification(s) that are recommended by the manufacturer.
CVT (Continuously Variable transmission) & its Applications
Single-speed transmission, steeples transmission, or pulley transmission are all terms for continuous variable transmission. The car is driven by a CVT mechanism, which does not have a series of gears. The CVT can smoothly move across a wide variety of appropriate gears. Because of the CVT’s stability, the input shaft will sustain a steady angular velocity. The CVT system used a belt-driven architecture. A belt or a metal link belt are the two kinds of belts. The only difference between CVT fluid and other fluids is that CVT fluid would contain more fiction rather than less fiction. It needs to be lubricant cation and more fiction to prevent the belt from sliding on the pulley system because it runs on a pulley system with belts.
Continuously Variable Transmission (CVT) not only keeps the engine at its greatest power range all the time but also reduces wasted time between gear shifts, resulting in more uniform and reliable acceleration.
The CVT is an appealing piece of equipment that provides excellent fuel economy and performance, and its ability to move easily and smoothly on inclines can be advantageous to those who live in mountainous areas. However, the money you can save in fuel does not equal the amount you will end up paying when they crash, owing to the incredibly high cost of installation and unrealistically poor
What is the difference between ATF transmission and CVT transmission?
A CVT is lighter than a traditional automatic, and this, combined with the smoother operation, helps to improve the fuel efficiency of vehicles that come equipped with a CVT. Because of the lack of gearing, it is easier for CVT vehicles to find and maintain an ideal torque ratio as well.
The CVT transmission uses fluids that are designed with friction modifiers which provide sufficient friction to ensure chain or belt grip while providing protection and performance enhancement. So the difference between ATF and CVTF fluids is fundamentally in the way their respective gearboxes work.
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Most of the people doesn’t know what is different between these 2 types of fluids for CVT and ATF transmission. What if they put into the wrong fluid in their transmission system, it will a big mistake
In order not to put the wrong fluid, we need to understand the 2 types of fluids first. They work differently in characteristic.
Firstly, we need to know what is ATF and CVT transmission system. ATF stand for (Automatic Transmission Fluid). An automatic transmission, also called auto, self -shifting transmission or AT, this system uses the fluid coupling in a place of a friction clutch, and accomplishes gear changes by hydraulically locking and unlocking a system of planetary gears. These systems have a defined set of gear range, often with a parking pawl that locks the output shaft of the transmission to keep the vehicle from rolling either forward or backward.
There are many sets of gear, Auto Transmission fluid is very important in this system, to provide a lot of lubricant cation and reduce as much fiction as possible when the vehicle is running.
CVT stand for (Continuously Variable transmission), also know as single-speed transmission, steeples transmission or pulley transmission. CVT system doesn’t have set of gears to drive the vehicle. The CVT can change seamlessly through a continuous range of the effective gear rations. The flexibility of a CVT allows the input shaft to maintain a constant angular velocity. A belt-driven design was in the CVT system. There are 2 types of belts, a belt or metal chain belt. The only things that’s make the different for CVT fluid is that the fluid has to produce more fiction rather than less fiction. It is because it’d running on pulley system running by belts, it has to be lubricant cation with more fiction to keep the belt from slipping on the pulley system.
Dexron 1 – ATF Dexron I is perhaps a fully synthetic automatic transmission fluid for many vehicle applications that outperforms traditional automatic transmission fluids and provides outstanding thermal stability. ATF Dexron I designs to satisfy the high demands of today’s passenger cars. ATF Dexron I is a multi-vehicle formula designed for today’s high-performance cars, SUVs, SUTs, buses, and other light vehicles.
Dexron II— ATF Dexron II is a premium automatic gearbox oil formulated with solvents and purified base oils. ATF Dexron II is suitable for automatic transmissions, power steering systems, torque converters, and other applications where ATF Dexron II style oil recommends by GM and other manufacturers.
Dexron III- ATF Dexron III is a power steering and automatic transmission fluid. Most transmissions used in General Motors engines, Holden, Isuzu, Opel, and Hydramatic transmissions used in a wide variety of vehicles benefit from ATF Dexron III. It’s also suitable for many older Japanese vehicles that require Dexron-type fluids. Except for Mercedes Benz, ZF, BMW, Voith, and Renk, it is recommended for other transmissions where Dexron and Dexron II fluids specify.
Dexron VI— ATF Dexron 6 is a high-performance synthetic blend oil that complies with GM’s DEXRON VI standard and provides warranty cover for GM vehicles manufactured after 2006. Wherever DEXRON mentions, it also improves performance in older GM vehicles. For 2006 and newer GM cars, ATF Dexron 6 offers warranty cover.
Car transmissions are delicate mechanisms.
Each car has its own recommendations from the manufacturer on which transmission fluid your car needs.
Some transmission fluids are very incompatible with different transmission types as they use different additives in the fluids. Your car transmission needs the correct fluid, as specified by your car manufacturer, to run correctly and to the fullest length of life.
While it’s not uncommon for someone to mix up which fluids should go in their car, putting the wrong transmission fluid in your car could be your vehicles fast pass to an early grave.
Types of Transmission Fluid
There are several different variables to take into account when it comes to transmission fluid. You first must know if your car requires automatic or manual transmission fluid. Then determine if your car is an automatic transmission if it has a continuously variable transmission. You should always follow your manufactures specifications on which fluid is right for your car.
Automatic Transmission Fluid (ATF)
Automatic transmission fluid is fluid that is used in cars that have automatic (self-shifting) transmissions. This fluid is optimized for use in automatic gearboxes that consist of a hydraulic pump, gears, disks, and bands.
Continuously Variable Transmission Fluid (CVT)
A continuously variable transmission is a type of automatic transmission vehicle. This type of transmission can change seamlessly through a continuous range of gears. It is able to do this by running on a series of pulleys connected with a steal band, rather than a fixed set of gears. CVT transmissions require CVT fluid. This fluid has friction modifiers that allow the belts to grip the pulleys.