Transmission Fluid

Transmission Fluid for Vehicles 🛠️

Transmission fluid is a specialized lubricant used in a vehicle’s transmission system — whether it’s automatic, manual, or continuously variable (CVT). Its main role is to cool, clean, and lubricate transmission components to ensure smooth gear shifting and long life of the gearbox.

🚗 Types of Transmission Fluids

1. Automatic Transmission Fluid (ATF)
   • Used in automatic and CVT transmissions.
   • Functions: lubrication, hydraulic pressure, cooling, and cleaning.
   • Common Types:
     • Dexron/Mercon: Used in most American and Asian vehicles.
     • Type F: For older Ford vehicles.
     • CVT Fluid: For Continuously Variable Transmissions.
     • Dual-Clutch Transmission (DCT) Fluid: For modern semi-automatic gearboxes.
2. Manual Transmission Fluid (MTF)
   • Thicker than ATF.
   • Provides smooth gear engagement in manual gearboxes.
   • Often labeled as 75W-90, 80W-90, or similar (based on viscosity).

⚙️ Functions of Transmission Fluid

• Lubricates gears, bearings, and moving parts.
• Prevents overheating by dissipating heat.
• Cleans and protects components from wear and corrosion.
• Maintains hydraulic pressure (especially in automatic transmissions).
• Ensures smooth shifting of gears.

🧾 When to Change Transmission Fluid

• Automatic Transmission: Every 40,000–60,000 km (check manufacturer’s manual).
• Manual Transmission: Every 60,000–100,000 km.
• Change sooner if you notice:
  • Delayed or rough gear shifts
  • Slipping gears
  • Strange noises or burning smell
  • Dark or dirty transmission fluid

🛢️ Popular Transmission Fluid Brands

• Mobil 1 ATF / MTF
• Castrol Transmax
• Valvoline MaxLife ATF
• Honda Genuine ATF DW-1
• Toyota ATF WS
• Shell Spirax