The car shop guy also seems to have sold me the wrong ATF type (type F), while my (Haynes) manual lists Dexron II. Good I didn't put it in yet!

However, it seems Dexron II is no longer for sale, replaced by Dexron VI. But what about this:

Dexron-VI -- For 2006 GM Hydra-Matic 6L80 6-speed rear-wheel-drive transmissions, can also be used in 2005 transmissions that require Dexron III but is NOT recommended for older transmissions.

What actually is the correct (OEM) ATF to use (for a Toyota LC 1991)?

'91 LandCruiser