There is a reason thay said use Dextron II. And that is what you should use.
dex 3 automatic transmission fluid (ATF) for the power steering.
How many quarts of automatic transmission fluid does the 2001 Toyota Avalon automatic transmission hold?
your choice if you wanted to but not needed,
Automatic Transmission fluid Dextron II or III
If you do you will need a power steering and automatic transmission oil coolers.
I have a 1995 Camry. Yes, Toyota recommends Dexron II or Dexron III transmission fluid. (Check the cap on top of the power steering reservoir. It will say to add Dexron II fluid only)
The automatic Toyota may be stuck in park because of transmission problems. The transmission may be jammed or stuck in that gear.
What is the fluid capacity of a Toyota Corolla automatic transmission 3.3 Qts drain and fill
The first one is faster
You should change your automatic transmission fluid in Toyota gearbox at least after every 30,000 miles.
£3000
You can fill the transmission through the transmission dip stick tube.