I've done some search for the recommended brake oils for Passo/Vitz/Boon.
Search revealed that Toyota recommends Dot3 brake oil for all of their models like Vitz, Camry, Grand Cruiser, Hilux, etc. all the car models and recommended brake oil is Dot3 only.
Now, in the Pak. market, the available oils are
Dot3 LM Price Rs. 350/250ml
Dot4 LM Price Rs. 400/250ml & Rs. 600/500ml.
I've gone through the study of Dot4 oil and characteristically its better than Dot3.
Dot4 is slightly expensive than Dot3, but typically Dot4 is better than Dot3 because of additional properties.
Characteristics of common braking fluids
Dry boiling point Wet boiling point Viscosity limit Primary constituent
DOT 2 190 ?C (374 ?F) 140 ?C (284 ?F) ? Castor oil/alcohol
DOT 3 205 ?C (401 ?F) 140 ?C (284 ?F) 1500 mm2/s Glycol Ether
DOT 4 230 ?C (446 ?F) 155 ?C (311 ?F) 1800 mm2/s Glycol Ether/Borate Ester
DOT 5 260 ?C (500 ?F) 180 ?C (356 ?F) 900 mm2/s Silicone
DOT 5.1 260 ?C (500 ?F) 180 ?C (356 ?F) 900 mm2/s Glycol Ether/Borate Ester
So all of friends over here, who want to change or buy the brake oil for their Toyota cars, plz go for Dot4 for better results.
And as I mostly write that NEVER BUY OILS/FLUIDS FROM TOYOTA. Because they do not produce them. They only buy from outside, tag and make money.
Presently the best available Brake oils are of following companies
Hope it will help.