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What kind of gear oil do you use for transmission fliid in a manual car?

Manual transmission fluids are specifically formulated to meet the demands of manual transmissions. They are designed to provide adequate lubrication for gears and bearings under a wide range of operating conditions. Manual transmission fluids typically contain a blend of base oils and additives that enhance performance and protect components.

When selecting a manual transmission fluid, it's important to consider the manufacturer's recommendations for your vehicle. The specific type of fluid required will depend on factors such as the transmission design, climate conditions, and operating environment.

Here are some common types of manual transmission fluids:

* SAE 75W-90 - This is a commonly used manual transmission fluid suitable for moderate to heavy-duty applications in passenger cars and light trucks. It provides good low-temperature performance and protection against wear and oxidation.

* SAE 75W-85 - This manual transmission fluid is suitable for light-duty applications in passenger cars and light trucks, especially in colder climates. It provides excellent low-temperature fluidity for easy shifting in cold weather.

* SAE 80W-90 - This manual transmission fluid is intended for heavy-duty applications in trucks and commercial vehicles. It provides maximum protection against wear, oxidation, and thermal degradation under extreme operating conditions.

It's important to use the correct type of manual transmission fluid specified for your vehicle to ensure proper lubrication and performance of the transmission.

Here are some tips for choosing the right manual transmission fluid:

* Check your owner's manual: Refer to the owner's manual for the recommended transmission fluid type for your vehicle.

* Consider the climate: Choose a transmission fluid that is suitable for the climate conditions you predominantly drive in.

* Check the manufacturer's specifications: Some transmission manufacturers may have specific recommendations for the type of fluid to be used, especially for high-performance or unique applications.

* Consult with a professional: If you have any doubts or questions about selecting the proper transmission fluid, consult with a qualified automotive technician or your vehicle's service department.