Super brake fluid. Can be used in any braking system where DOT 4 or 5.1 is required. "Boiling point at least 260 ° C, wet boiling point at least 180 ° C. DescriptionDOT 5.1 brake fluid. This fluid is recommended in braking systems with ABS or ASR. "DOT 5.1 has a very high boiling point, which minimizes the risk of steam lock and other problems related to high temperatures. ""DOT 5.1 can be mixed with other brake fluids that meet DOT 4 or 5.1 This fluid does not damage seals, wires or other components of conventional braking systems. """What is the difference between DOT 4, DOT 5 & DOT 5.1? "DOT 5 is silicone-based and is not used in cars anymore as it is not suitable for ABS systems and it does not have the same lubricating properties of metal to Metal as a glycol-based liquid has (DOT 4, DOT 5.1 is glycol based). ". "Today's DOT 4 is theoretically DOT 5.1 in terms of properties. "DOT 5.1 has a higher boiling point than DOT 4, but today's advanced DOT 4 stands well against DOT 5.1.