The maintenance list of any motor vehicle includes the replacement of motor oil. But don't forget that there's oil in the gearbox too. But how do we determine that it's time for his replacement? Is it working on time and should it be poured like an engine? And does the regulation apply to the servicing of a car transmission? Why the oil in the box?
Why the oil in the box?
Any oils, even for engines, even for transmissions, are the basics of the base oil and the additive package.
With these temperature loads, oil begins to sing and lose oil properties
The properties of the oils are determined by the quality of the chemical composition of their base, and the additives added to the oils are used to adjust and improve their performance.
In addition to the lubricant oil, there is another important function, which is the dissipation of heat from the gears in the cordon. The average oil temperature in the earshift gearbox fluctuates around 150 degrees Celsius, while the staining of the contact with the gears is about 300. With these temperature loads, oil begins to sing and lose oil properties. And in automatic gearboxes, the oil is also the working body that transmits the engine torque from the engine to the gears, and the blowing oil just doesn't let the car move. Not even special radiators installed to cool the oil. To avoid this, a special additive package is added to the oil.
When and why change the oil?
Oil needs to be changed, first of all, due to the loss of functionality of the additive package. With the passage of time, additives lose their properties and stop providing reliable protection to working surfaces. The oil is starting to get bubblin ', and a bully bully may occur. The consequences are a tedious gouda of a gears of gears that will grow, and after about 300 to 500 kilometers, the six-six-six will begin to break. In the end, the gearbox is wedge. This happens in cars with full and front wheels. In cars with a rear-wheel drive and a mechanical check-point, the gearbox does not test such thermal loads and oil can serve 10 to 20 thousand longer than the lubricating properties. But it is usually replaced with the replacement of oil in the gearbox. This is done for the removal of dirt particles and shavings, which are produced by the work of the gears, and when replaced by a CAT crater with butter.
In order to avoid this, manufacturers recommend that the oil replacement procedure be carried out in a 50-to 60,000-kilometre gearbox, and in the intensive "split-stop" drive, the replacement period is reduced to between 30 and 40 thousand mileage. These recommendations do not depend on the overall mileage of the vehicle.
In some car models, transmissive oil is littered for the entire life of the vehicle. In this case, there is no cork in the checkpoint crater.
With regard to the maintenance of automatic boxes, it is not possible not to mention the CVs that have been widely distributed in modern automotive industry. Although they are considered to be automatic, they are very different and operate in very strict temperature conditions. The usual oil for automatic transmission is not good for them-there is a special liquid. It is recommended to change the liquid in the variate at 40 to 50,000 kilometers, while the intensive commuting is reduced to 30,000. The frequency of substitution of the variator fluid must be strictly observed, because due to the constant high load on the variator and the rigid temperature regime, the additive package falls far more rapidly than normal transmissive oil.
When you replace the transmission oil of the carter, the gearbox is not washed-there is no need. In case of repair, the dismantling of the box manually removes the entire dirt and clean the magnet, which collects the shavings resulting from the work of the gears. It is not worth saving, and after asseming a site in a box, the engineers of the dealer centers recommend that the new oil should be filled, even if the planned replacement was only recently, as the use of fresh oil is a guarantee of reliable and durable work of the gearbox.
Modern synthetic transmissive oils are all seasonal and can operate without losing their lubricating properties in the range of temperatures from -50 to +50 degrees Celsius. They do not thicket, they do not lose their viscose properties in the cold and in the heat, so cars with such oils can be used almost everywhere.
