Throttle Muscle TM3463 - Xtreme Synthetic Dot 3 / Dot 4 On and Off Road Extreme Race Performance Brake Fluid 1 Gallon Formulated to guard against vapor lock and moisture absorption Exceeds requirements for both DOT 3 and DOT 4 brake fluids Designed for use in disc, drum and ABS brake systems Prevents seal hardening or softening Surpasses specifications SAE J1703 and FMVSS No. 116