What type of fluid does the car specify? As I recall, there's just Type
F and Dextron, the latter being more common. Synthetic versions of both
are available, they may offer slight advantages if the car is driven
hard or in very hot climates but for most drivers there will be little
difference. One brand is pretty similar to the next, they all have to
meet the same certifications. If the transmission is not performing
correctly when filled with the type of fluid specified in the owners
manual then something is wrong with it.
