I just bought a bottle of mr2 spyder P/S steering fluid from twos r us and they were very expensive ~$60. Pretty much all our cars are toyotas: Highlander and Sienna. I wonder if I can use the same P/S steering fluid for the two other toyotas we have. I read the user manuals on our Highlander and Sienna and it doesn't say anything about buying a special PS steering fluid. Just curious.