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Gear oil is a lubricant that protects and prolongs the lifespan of the car transmission system and reduces fuel consumption. When buying gear oil, follow the instructions in your car manual. Car manufacturers generally list recommended SAE and API oil specifications and company standards, plus the amount of oil the car needs.
ContinueViscosity indicates the temperature range at which the oil maintains its lubricating characteristics. The viscosity grade of a lube oil is determined by SAE standards; their viscosity grades are divided into W ("Winter") oils and summer oils. The grade indicates how thick or thin the particular oil is and tells you whether it is suitable for use in summer, winter, or all year round. Low-temperature viscosity oils are marked with the letter W (for example, 75W), while high-temperature viscosity oils have no extra letters in their designation. Then there are also oils that can be used in both winter and summer. These are marked by two grades (e.g. 80W-90).
Selecting the right performance level increases protection for all gear components against wear.
Automatic transmissions have highly specific requirements, so performance characteristics of transmission fluids are generally determined by vehicle manufacturers.
Mineral oils are made from petroleum products; synthetic oils are made from artificially produced chemical compounds. There are two basic types of synthetic gear oils:
Make sure to follow the car/oil manufacturer’s instructions and change the gear oil as often as they recommend. If you do not have the car manual, contact the car manufacturer or an authorised distributor.
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