Referring to automotive brake fluid. It has a dry boiling point of 230 °C (446 °F) and a wet boiling point of 155 °C (311 °F)

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what is the difference between DOT3 and DOT4 brake fluids?

What is the difference between DOT3 and DOT4 brake fluids? What could possibly go wrong if I use a (4 times cheaper) DOT3 brake fluid instead of the DOT4 which manufacturer recommends (but allows ...