Type A and Type A, Suffix A—very old transmission fluids superseded by Dexron and Mercon. Equivalent to Mercedes-Benz Sheet 232.2.
Dexron, Dexron II, IID, and Dexron IIE—these are the original GM Dexron ATFs and are no longer licensed by the company, having been superseded by Dexron III, which has now itself been superseded by Dexron VI. The difference between Dexron, II, and IIE was mostly in the oxidation inhibitors.
Dexron III and IIIH—OE ATF at GM for many years and widely adopted by other manufacturers. General Motors now considers all of them to be obsolete and discontinued licensing Dexron IIIH in 2006. Dexron IV was an upgraded version of Dexron III, which was used by GM only briefly.
Dexron III/Saturn—a version of Dexron III developed for certain Saturn models.
Dexron VI—the newest GM ATF, it was developed specifically for the new six-speed automatic and is a synthetic blend (meaning it has some conventional base stocks). That transmission has tighter internal tolerances and required a fluid that had higher shear strength that Dexron III.
[Dextron VI] was introduced with the 2006 models. GM considers Dexron VI to be "backward compatible," meaning GM recommends it for use in any vehicle that originally used any earlier version of Dexron and that it can be mixed with them. However, GM specifically recommends against using Dexron VI in non-GM made vehicles that used Dexron III as original equipment. It is also the specified ATF in certain non-GM models that use GM transmissions, such as BMW. It is not, however, specified for GM brand vehicles that have non-GM transmissions, as mentioned above, or are imported to the United States.
NOTE: Dexron VI is not recommended for: Pontiac Vibe and Wave, Chevy Aveo, Epica, and Equinox, Saturn ION with CVT or AF23 transmission, Saturn Vue with CVT, AF33 or 5AT transmissions, or 1991–2002 Saturn S. These are vehicles with transmissions that were not manufactured by General Motors.
Ford Type F—an old ATF first introduced in 1967 and used in all Ford products prior to 1977, and in some until 1980; also used in various import vehicles of the period, including Mercury Capri, Jaguar, Mazda, Saab, Toyota, and Volvo. Type F is not compatible with any other ATF. Specifically, it is not compatible with Mercon ATFs.
Ford Type H—developed for the C5 Ford automatic transmission introduced in 1981, it has been superseded by Mercon. Type H is not compatible with Type F and should not be used in a transmission requiring Type F.
Ford Type CJ—originally designed for the Ford C6 automatic transmission, it also has been superseded by Mercon and also can be replaced with Mercon V, but should never be used in a transmission requiring Type F. Dexron II is an approved alternative to Type CJ.
Mercon—introduced in 1987 and similar to Dexron II. Ford ceased licensing Mercon in 2007 and now recommends Mercon V for all transmissions that previously used Mercon. Mercon is a suitable replacement for Type H and Type CJ fluid, but not for Type F.
Mercon V—the most common Ford ATF in late model Fords, it is very much like Dexron III. Should not be used in a transmission requiring Ford Type F.
Mercon LV—the latest Ford ATF, it is factory fill in 2008 and later Fords. The LV stands for "low viscosity." It is a fully synthetic ATF. It is not compatible with earlier Mercon fluids, so it should neither be mixed with Mercon or Mercon V used to replace those fluids. It is not compatible with any other fluid, either.
Mercon SP—a version of Mercon V with an enhanced additive package.
Mercon CVT—Ford ATF specifically developed it for models with continuously variable transmissions.
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Toyota Types T, T-II and T-III—Toyota ATFs, which have now been superseded by Type T-IV.
Toyota Type T-IV—Toyota fluid specified for Toyota and Lexus vehicles. Sold only at Toyota or Lexus dealers or online. Replaces Types I, II, and III. Also used in Pontiac Vibe (which has a Toyota powertrain).
Toyota Type T-V—synthetic low viscosity Toyota ATF, also used in Lexus vehicles.
Toyota WS—this is the newest Toyota fluid and it is also a lower viscosity fluid than Type T-IV. The "WS" stands for "world standard." It is also used in Lexus vehicles.
