automatic transmission fluid

(ATF) A very thin viscosity liquid designed for use in automatic transmissions to transfer the movement of the torque converter to the driveshaft. However it is also recommended for use in the forks of motorcycles. When poured into the throat of an automobile carburetor, it helps to remove a build-up of carbon on the cylinder head and the domes of pistons.

Dictionary of automotive terms. 2015.

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  • Automatic transmission fluid — (ATF) is the fluid used in vehicles with self shifting or automatic transmissions. It is typically colored red or green to distinguish it from motor oil and other fluids in the vehicle. On most vehicles its level is checked with a dipstick while… …   Wikipedia

  • Automatic transmission — An automatic transmission (commonly AT or Auto ) is an automobile gearbox that can change gear ratios automatically as the vehicle moves, freeing the driver from having to shift gears manually. Similar but larger devices are also used for heavy… …   Wikipedia

  • automatic transmission — an automotive transmission requiring either very little or no manual shifting of gears. Also called automatic, automatic drive. [1945 50] * * * ▪ mechanics       arrangement of gears, brakes, clutches, a fluid drive, and governing devices that… …   Universalium

  • automatic transmission — noun a transmission that automatically changes the gears according to the speed of the car • Syn: ↑automatic drive • Hypernyms: ↑transmission, ↑transmission system * * * noun : a usually hydraulic or pneumatic mechanism whereby a motor vehicle… …   Useful english dictionary

  • transmission fluid — (ATF) A superthin oil that fills the automatic transmission system so that it can run on hydraulic pressure. It can also be used in some power steering pumps. It is sometimes used to clean the inside of a carburetor …   Dictionary of automotive terms

  • automatic transmission — A mechanism of the drivetrain which takes the power from the engine and transfers it to the driveshaft or wheels. Without using a clutch, it uses a torque converter and fluid coupler to change the gear ratio. It automatically effects gear changes …   Dictionary of automotive terms

  • Semi-automatic transmission — Transmission types Manual Sequential manual Non synchronous Preselector Automatic Manumatic Semi automatic Electrohydraulic …   Wikipedia

  • automatic — [1] Colloquial term for automatic transmission. [2] Anything that operates without the direct control of the driver. Also see automatic choke automatic gearbox automatic level control automatic temperature control automatic transmission automatic …   Dictionary of automotive terms

  • fluid — [1] A substance which flows, e.g., a liquid or a gas. [2] Substance in either a liquid or gaseous state; substance containing particles which move and change position without separation of the mass. [3] Any liquid or gas that is capable of… …   Dictionary of automotive terms

  • transmission — I (New American Roget s College Thesaurus) n. conveyance, transference, sending, communication, conductance; gearshift, gears, torque converter. See passage, instrumentality, transfer. II (Roget s IV) n. 1. [The act of transporting] Syn.… …   English dictionary for students

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