The liquid for automatic gearshift boxes (ATF, Automatic Transmission Fluid) is a liquid high index oil on a synthetic or mineral basis. The transmission fluid for ACPR ensures the operation of the transmission control and control system, transmits the torque through the engine to the gearbox, smear and cooling the pipe parts.
The recommended type of transmission recommended for the transfer fluid is usually indicated in the user's guide for the car and is duplicated by the engraving on the oil-layer of the transmission. Most modern automobiles use ATF like Dexron, Dexron-2 or Dexron-3. However, a new type of ATF fluid-type T or T-2-has recently emerged. These kinds of transmissive liquids are color-coded in different colors, the type T is yellow and the Dexron is red because mixing them is not recommended.
History of the ATF Fluid
Hydramatic, the first automated manual transmission with a vacuum gearshift, was created in 1938 by Pontiac, which was structurally part of General Motors.
Already by the late 1940s automatic transmission became a familiar part of the vehicle for U.S. car owners
As this concern is all innovative, design ideas and new design development has preferred to check and roll out on the models of the Oldsmobile, then in 1939 the new transmission of Hydramatic was offered to the customers as an additional option for the car Oldsmobile Custom 8 Cruiser only for $57. And by the end of the 1940s, the automatic transmission became a familiar part of the vehicle for U.S. car owners. Not surprisingly, the world's first specifications for transmissive fluid AAC-Type A-in 1949 became the same General Motors (initially for automating boxes of motor oils).
GM has begun to develop, classify and establish strict requirements for transmission fluids. The specifications created by General Motors, due to a lack of competition in this area, became immediately worldwide standards of fluid for automatic transmissions.
As the main lubricant of the first ATF, the [ [ fat]] [ [ fat]] [ [ whale oil]] was used from the [ [ sala whale]]
In 1957 the existing specification was revised and a new application "A"-transmissive liquid Type A-Suffix A (abbreviated ATF-TASA) was added. Exactly 10 years after that, a B-ATF Dexrona-B specification was created. It is noteworthy that the bulk of the liquid in the liquid was the liquid oil extracted from the sea-whale salon.
However, the further development of both domestic and global technologies in the production of robotic gear has forced General Motors to introduce new standards. As early as 1973, ATF Dex-2C was developed and ATF Dexron-2D replaced it in 1981.
As a result of attacks by environmental-defenders and by the law banning whaling, the GM corporation is creating an enhanced standard ATF Dexron-2E by 1991 on a synthetic base (until now the basis of the transmissive fluids was mineral, and as one of the components was used the sperm oil which was extracted from members of the cetacean species).
In 1994, specifications with new requirements for viscosity-temperature and friction properties-ATF Dexron-3F and Dexron-3G were presented to the world public. And eight years later, ATF Dex-3H was released. However, ATF Dexron4 became the most modern and toughest specification.
To date, besides the specifications of General Motors Corporation, the specifications of automakers such as Ford, Chrysler, Toyota, as well as Mitsubishi and Hyundai are known.
ATF maintenance issues
The optimum fluid level must be maintained to ensure the durability of the transmission and its proper operation. The life of the ATF is largely dependent on the mileage, operating conditions and age of the vehicle.
The replacement of the ATF fluid is required only in specialized auto-services with the use of equipment for 100% replacement of liquid in ACPR. If required, the replacement of the liquid should be replaced with a filter, as well as a diagnostic of the transmission status.
The transmission status can be measured by the smell and colour of its transmission fluid. For a well-functioning automatic gearbox, the ATF colors are orange-red or thick-red. The hot smell, combined with black or dark brown, shows a breakdown of the transmission.
It should be borne in mind that too low the transmission fluid causes the pump to be taken together with the oil of some air. As a result, the drives of the meatballs do not shrink as necessary, the disc thrashing appears, and they burn.
The operation of the vehicle with foam oil in the automatic gearbox will render the transmission out of order very quickly. As the volume of oil is larger, it will be overstated. The transverse oil may be boxed up and rotating parts of the gearbox if the oil level is greater than the allowed value.
In both inflated and undervalued oil, foam increases the volume and is thrown through the ACPR. In that case, by looking under the car, you can see that the entire gearbox in the oil.
