Dexron Ii Equivalent

Dexron II Equivalent: Understanding the Variations

ByPeter M. Thomas

Dexron II is a transmission fluid specification developed by General Motors (GM) for use in automatic transmissions. It has been superseded by Dexron III, Dexron VI, and other more modern formulations, but it is still used in older vehicles and applications where Dexron II is specified.

Viscosity Grades

Dexron II is available in two viscosity grades: Dexron IIA and Dexron IIE. Dexron IIA is the thinner of the two grades and is typically used in older vehicles with non-lockup torque converters. Dexron IIE is thicker and is used in vehicles with lockup torque converters and other heavy-duty applications.

Performance Requirements

The Dexron II specification includes a number of performance requirements, including:

  • Viscosity: Dexron IIA must have a viscosity of 10.2 cSt at 100°C and 2.9 cSt at -20°C. Dexron IIE must have a viscosity of 11.1 cSt at 100°C and 3.5 cSt at -20°C.
  • Flash point: Dexron II must have a flash point of at least 190°C.
  • Pour point: Dexron II must have a pour point of -30°C or lower.
  • Shear stability: Dexron II must be able to withstand shear stress without breaking down.
  • Oxidation stability: Dexron II must be able to resist oxidation and thickening over time.
  • Anti-wear properties: Dexron II must contain additives that protect metal surfaces from wear and tear.
  • Anti-foaming properties: Dexron II must contain additives that prevent foaming and aeration.

Equivalent Fluids

There are a number of Dexron II equivalent fluids available from various manufacturers. These fluids are typically labeled as “Dexron II compatible” or “meets Dexron II specifications.” Some popular Dexron II equivalent fluids include:

  • Chevron Dexron II
  • Mobil ATF 220
  • Castrol Transmax Dexron II
  • Valvoline Dexron II
  • Lucas Dexron II

When to Use Dexron II Equivalent Fluids

Dexron II equivalent fluids can be used in any application where Dexron II is specified. This includes older vehicles with non-lockup torque converters, as well as vehicles with lockup torque converters and other heavy-duty applications.

It is important to note that Dexron II equivalent fluids are not necessarily interchangeable with Dexron III or Dexron VI fluids.

Conclusion

Dexron II is an older transmission fluid specification that is still used in some older vehicles and applications. There are a number of Dexron II equivalent fluids available from various manufacturers. These fluids are typically labeled as “Dexron II compatible” or “meets Dexron II specifications.” Dexron II equivalent fluids can be used in any application where Dexron II is specified.

Peter M. Thomas
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