AMSOIL Signature Series Fuel-Efficient ATF vs AutoMatic Smooth Operator ATF vs Castrol Transmax Dex/Merc ATF

Technical Specifications Comparison

• Fluid Type 💧

  The specific category of transmission fluid designed for different transmission systems.

  For all*

  • ATF

    ATF is designed for use in automatic transmissions

• Viscosity Grade 🌡

  The SAE viscosity grade of the transmission fluid, indicating its flow characteristics.

  AMSOIL Signature Series Fuel-Efficient ATF

  • SAE 5W-30

    The viscosity grade of AMSOIL Signature Series Fuel-Efficient ATF is SAE 5W-30. Low-viscosity multi-grade fluid for improved fuel efficiency and cold-weather performance. Click to see all.

  AutoMatic Smooth Operator ATF

  • SAE 5W-40

    The viscosity grade of AutoMatic Smooth Operator ATF is SAE 5W-40. Wide-range multi-grade fluid for extreme temperature variations, balancing cold-start and high-load performance. Click to see all.

  Castrol Transmax Dex/Merc ATF

  • SAE 10W-30

    The viscosity grade of Castrol Transmax Dex/Merc ATF is SAE 10W-30. Multi-grade fluid for moderate climates, balancing cold-start and high-temp performance. Click to see all.

• Fluid Specification 📖

  Technical standard or approval that the transmission fluid meets, ensuring compatibility with specific vehicle models and transmission systems.

  For all*

  • Dexron-VI

    "Dexron-VI is a modern automatic transmission fluid specification, offering superior performance and protection."

  AMSOIL Signature Series Fuel-Efficient ATF

  • Mercon LV

    AMSOIL Signature Series Fuel-Efficient ATF meets the Mercon LV fluid specification. Low-viscosity transmission fluid for Ford vehicles requiring Mercon LV specification Click to see all.

  AutoMatic Smooth Operator ATF

  • Mercon LV

    AutoMatic Smooth Operator ATF meets the Mercon LV fluid specification. Low-viscosity transmission fluid for Ford vehicles requiring Mercon LV specification Click to see all.
  • SP-IV

    AutoMatic Smooth Operator ATF meets the SP-IV fluid specification. SP-IV is a transmission fluid specification for certain Hyundai and Kia vehicles Click to see all.
  • Mercon V

    AutoMatic Smooth Operator ATF meets the Mercon V fluid specification. Ford-approved transmission fluid meeting Mercon V specifications for various Ford vehicles Click to see all.

  Castrol Transmax Dex/Merc ATF

  • Mercon V

    Castrol Transmax Dex/Merc ATF meets the Mercon V fluid specification. Ford-approved transmission fluid meeting Mercon V specifications for various Ford vehicles Click to see all.

• Performance Level 🏆

  Indicates the transmission fluid's level of performance and suitability for different driving conditions.

  AMSOIL Signature Series Fuel-Efficient ATF

  • High Performance

    The performance level of AMSOIL Signature Series Fuel-Efficient ATF is High Performance. Transmission fluids designed for high-performance vehicles and demanding conditions. Click to see all.

  AutoMatic Smooth Operator ATF

  • High Performance

    The performance level of AutoMatic Smooth Operator ATF is High Performance. Transmission fluids designed for high-performance vehicles and demanding conditions. Click to see all.
  • OEM Approved

    The performance level of AutoMatic Smooth Operator ATF is OEM Approved. Transmission fluids that meet original equipment manufacturer specifications and approvals. Click to see all.

  Castrol Transmax Dex/Merc ATF

  • OEM Approved

    The performance level of Castrol Transmax Dex/Merc ATF is OEM Approved. Transmission fluids that meet original equipment manufacturer specifications and approvals. Click to see all.

• Temperature Range 🌡

  The range of temperatures in which the transmission fluid maintains its effectiveness.

  AMSOIL Signature Series Fuel-Efficient ATF

  • Extended Temperature

    AMSOIL Signature Series Fuel-Efficient ATF is effective in the Extended Temperature temperature range. Transmission fluids that perform well in a wide range of temperatures, from very cold to very hot conditions. Click to see all.

  AutoMatic Smooth Operator ATF

  • Extended Temperature

    AutoMatic Smooth Operator ATF is effective in the Extended Temperature temperature range. Transmission fluids that perform well in a wide range of temperatures, from very cold to very hot conditions. Click to see all.

  Castrol Transmax Dex/Merc ATF

  • Standard

    Castrol Transmax Dex/Merc ATF is effective in the Standard temperature range. Transmission fluids suitable for typical temperature ranges, providing reliable performance in most driving conditions. Click to see all.