👉 The tranny fluid, also known as automatic transmission fluid or ATF, is a specialized lubricant and transmission fluid designed specifically for automatic transmissions. It serves multiple purposes: it reduces friction between moving parts, prevents corrosion, and helps dissipate heat. ATF is typically a viscous mixture of mineral oil and additives, formulated to withstand the high temperatures and pressures found in automatic transmissions. Unlike regular engine oil, tranny fluid is not meant for use in engines but rather in the transmission system, ensuring smooth and efficient operation of the gearbox.
