Toyota recommends Dextron II or III ATF for my '03 Echo's power steering fluid. I went to Advance Auto Parts and saw all Dextron III ATF bottles had labels associated with the word Mercon. At the end I bought a bottle made by Valvolin recommended for Big Three and some imports. Before changing the PS fluid I want to make sure that the Mercon/Dextron III is compatible to Toyota's specs.