A passenger automobile can carry about 12 gallons of transmission fluid on average, but it can hold up to 36 quarts depending on the vehicle model and type. The amount of transmission fluid that a vehicle’s engine can contain is listed in the owner’s handbook.
Different fluids are used in different transmission types. Manual transmissions utilize ordinary motor oil, heavyweight hypoid gear oil, or automatic transmission fluid, whereas automatic transmissions use automatic transmission fluid. The owner’s manual also specifies the type of fluid necessary. To minimize major problems, Popular Mechanics recommends changing the gearbox fluid on a regular basis.
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