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Transmission fluid is the "blood" of automatic transmissions.

Transmission fluid is the "blood" of automatic transmissions.

March 06, 2026

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ATF is not just a lubricant, it is also a medium for hydraulic power transmission. In an automatic transmission, it simultaneously undertakes the following four key tasks:

Power transmission: Transfer engine power to the gearbox in the torque converter.

Lubrication and cooling: Reduce friction between gears and bearings, and remove heat generated internally.

Friction control: Ensure smooth engagement of clutch plates during gear shifting to avoid shaking.

Cleaning and rust prevention: Clean the debris generated by friction and protect the precision solenoid valve system.


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