Viscosity Grades of Transmission Fluids

Viscosity Grades of Transmission Fluids

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The Society of Automotive Engineers (SAE) viscosity grade of the transmission fluid, which denotes its thickness and flow properties at different temperatures. This grade is crucial for ensuring proper lubrication and performance in various operating conditions.
  • SAE 10W-30: Multi-grade fluid for moderate climates, balancing cold-start and high-temp performance.
  • SAE 5W-30: Low-viscosity multi-grade fluid for improved fuel efficiency and cold-weather performance.
  • SAE 75W-90: Versatile gear oil for manual transmissions and differentials, offering wide-range temperature performance.
  • SAE 80W-90: Traditional multi-grade gear oil for older transmissions and differentials, offering robust protection.
  • SAE 5W-40: Wide-range multi-grade fluid for extreme temperature variations, balancing cold-start and high-load performance.
  • SAE 10W-40: Versatile multi-grade fluid for wider temperature ranges, offering enhanced high-temp stability.
  • SAE 75W-80: Low-viscosity gear oil for manual transmissions, offering improved fuel efficiency and shift quality.
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