How Many Types of Transmission Fluid Are There?
3 Answers
Transmission fluid is a mechanical or hydraulic device used for mechanical power conversion. Here is an introduction to how many types of transmission fluid there are: 1. Introduction: In automobiles, the transmission is commonly referred to as the "gearbox"; in industrial machinery, it is often called a "speed changer," which is a mechanical or hydraulic device for mechanical power conversion. 2. Performance in Use: Currently, the better method for changing transmission fluid is dynamic fluid replacement. This involves using specialized transmission cleaning equipment to fully circulate the old fluid during transmission operation, thoroughly draining it before adding new transmission fluid. This method achieves a fluid replacement rate of over 90%, ensuring excellent results.
I remember when I changed the transmission fluid last year, the mechanic explained several types to me, which was really eye-opening. There's mainly Automatic Transmission Fluid (ATF), used in most automatic cars, divided into universal types and brand-specific ones, like Ford's specialized fluid. Manual Transmission Fluid is suitable for older manual cars, with different viscosity requirements. Continuously Variable Transmission Fluid (CVTF) is specially designed for CVTs, being smoother and more energy-efficient. Dual Clutch Transmission Fluid (DCTF) is used in high-performance dual-clutch systems for quicker response. Counting these four categories, there are also some special formulations for sports cars or electric vehicle variants. In total, there are about four to five types, each needing to match the car model correctly; otherwise, the transmission might jerk or overheat. My car is an automatic, and after using the correct fluid, the gear shifts became much smoother. Regular checks can extend its lifespan.
Over decades of driving, transmission fluids have evolved from simplicity to complexity. In the past, manual cars used just one type of oil, but now there are automatic transmission fluid (ATF), continuously variable transmission fluid (CVTF), and dual-clutch transmission fluid (DCTF). ATF is the most common, with some vehicles requiring specific grades like DEXRON or MERCON. Manual transmission oil is thicker and requires less maintenance. CVTF emphasizes smooth operation, while DCTF ensures rapid clutch engagement. Broadly, there are these four major categories, but delving into brand-specific oils like those for Toyota or Honda, the total can reach five or six types. The key is to avoid using the wrong type—my neighbor once mixed different fluids, resulting in transmission noise and costly repairs. Checking the manual when buying a car to confirm the correct type is best.
