Depends on the make and model of the truck.
What type of transmission fluid does my 1989 toyota pick up truck take, manual 4 speed.
dexron
Standard or automatic takes fluid.
If there is no drain plug you have to remove the pan.
Some take atf some gear oil, others specific manual trans fliud.
Standard Dexron III transmission fluid. You beat me to it. regular off the shelf dexron III
oil- depends on season. Winter-5w30,summer10w40. transmission fluid- standard AT fluid
The standard Dexron III most vehicles use.
If it has automatic transmission, it takes transmission fluid.
Standard Dexron III. GM cars all take that (at least in 1998).
It calls for transmission fluid =]
Mitsubish Diamond SP II or Castrol sells a multi-vehicle application fluid including this type