The gearbox is an important element of the car, the nature of its operation determines how responsive the car will obey your orders, and how optimally the engine will work. The correct lubricants must be used to keep the transmission running smoothly.
Instructions
Step 1
Open the operating instructions for the car, there will definitely be indicated the required oil viscosity, temperature conditions and other parameters. You must strictly follow these guidelines when choosing your oil.
Step 2
Lubricating oils provide extreme pressure and antiwear properties, since scuffing in gearboxes is rare, focus on the antiwear properties of the oil.
Step 3
Oils are classified by quality (API grading system) and viscosity (SAE grading system). The higher the last digit in the API classification, the better the oil. For most modern cars, API GL-5 and GL-6 oils are suitable. For older VAZ models, GL-4 oils are better suited.
Step 4
The SAE classification can help when choosing a winter oil - in the cold season, it is necessary to use a gear oil, the name of which includes the W index.
Step 5
Oils can be mineral, synthetic and semi-synthetic base. For the gearbox, the base does not really matter, but mineral oil will be much more profitable from an economic point of view.
Step 6
Many oil manufacturers claim that engine oil can be used for the gearbox. This is only true in the case of top manufacturers. In any case, it is best to consult an auto mechanic before filling the gearbox with engine oil.
Step 7
Before changing the oil in the gearbox, it is imperative to clean and rinse it, since the new agent and the remnants of the old one may be incompatible.
Step 8
Automatic transmissions require a special low-viscosity fluid. Oil manufacturers have developed a special classification for such fluids - ATF. Only such a lubricant can be used for automatic transmissions, filling them with conventional gear oil, you risk damaging the mechanism.
