24. AMSOIL INC. offers Series 500 High Performance DOT 3 brake fluid that will maintain a boiling point well beyond DOT standards. Series 600 High-Performance DOT 4 brake fluid is designed for high-temperature stability and will remain virtually incompressible, even at the highest pressures generated in braking systems. Both Series 500 and 600 exceed Federal Motor Vehicle Safety Standard No. 116 and all requirements of the DOT.