![]() Ford, GM and Chrysler ATF specifications:ĪTF Fluids are not defined by a weight as is motor oil. The types of Automatic Transmission Fluids fall into a few categories:ġ). Always follow the recommendation of the vehicle manufacturer to ensure the proper fluid is used and fluid change interval is maintained. This recommendation can commonly be found in your vehicle owner’s manual. Low temperature flow ensures effective operation of hydraulics and electronics controls at low temperatureĭepending upon your vehicle manufacturer, model type, and model year, a specific automatic transmission fluid will be required to ensure proper transmission performance and protection.Viscosity stability helps maintain viscosity or proper fluid thickness over a wide temperature range.Extreme pressure/load carrying performance ensures anti-wear and gear durability.Frictional Characteristics enables smooth gear changes by supplying the correct friction to the transmission clutches and bands.Heat resistance and thermal stability, helps prevent deposit and sludge from forming as the result of the high temperature operation of the transmission.Critical areas of performance include the following: Automatic transmission fluid is a critical component of any automatic transmission. Also referred to as ATF, this fluid ensures proper operation, performance and protection of the automatic transmission. Smooth Drive Technology™: Several Castrol Transmax products are formulated with Smooth Drive Technology™, which are active control molecules that automatically adjust their friction level under changing pressures and speed – delivering a smoother drive for longer.The vast majority of passenger car and light truck transmissions operate automatically, that is without the need to manually shift gears. The Castrol® Transmax® portfolio contains a broad range of automatic transmission fluids liquid engineered to protect critical transmission components, including products that have been licensed by GM, Ford and Chrysler as well as fluids that meet the JASO requirements of popular Japanese imports from Toyota, Honda and Nissan. ![]() So using the right ATF is critical to the performance and long life of your transmission. The ATF precisely controls friction in the clutch packs and maintains it throughout the drain interval … which is perhaps the most important property of an ATF all while providing lubrication to hundreds of moving parts even under high temperatures and extreme pressure. It has to flow easily from minus 40 degrees Fahrenheit to nearly 400, even in fine valve assemblies. It acts as a corrosion inhibitor and wear protection for the Planetary Gear sets. It acts as a hydraulic fluid, to engage clutch packs & shift the gears. The one component of the entire system that’s critical to all of these parts working properly together is the Automatic Transmission Fluid, or ATF. Finally, the Mechatronics is the “brain” of the transmission, a complex system of ports, valves and electronics that control all transmission functions. It uses two turbines which spin independently, but which are fluid coupled allowing the engine to idle while the engine is stopped and produce smoother acceleration as it shifts through the gears. The Torque Converter connects the transmission to the engine and multiplies the torque during initial acceleration. ![]() Clutches or “clutch packs” engage and disengage the gear sets. The planetary gear sets provide the chosen gear ratios for the vehicle. The pump supplies pressurized transmission fluid for many uses throughout the unit. There are several main components that make up the step-type transmission. The Dual Clutch Transmission (or DCT), the Continuously Variable Transmission (or CVT) and the step-type transmission which is the most common, especially here in the US. There are 3 basic types of automatic transmissions found throughout the world. What kind of automatic transmissions are there? Shift through the gears and transfer engine power to the drive wheels. The automatic transmission combines electrical & mechanical systems, hydraulics and computer processors to smoothly In fact, the automatic transmission is perhaps the most complicated mechanical component in an automobile. ATF fluids engineered to exceed SpecificationsĪutomatic transmissions are now more complex than ever, placing ever-greater demands on auto transmission fluids.
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