Used in Formula 1, WRC, Dakar, WEC and WRTeknica racecars, Endless RF-650 is guaranteed to provide you the performance you need on track along with superb brake feel. With an extremely low freezing point and high dry/wet boiling points, RF-650 fluid allows for consistent braking performance on-track, where you can expect quality braking feel lap after lap. Even viscosity and low compressibility result in unmatched pedal feedback, crucial for trail-braking, threshold hold braking, and driver confidence. It's no surprise that RF-650 is the official brake fluid choice for Mercedes AMG-Petronas Formula 1 team, delivering championship winning results year after year. RF-650 also serves as the factory fluid for all Porsche vehicles, further validating the pedigree of RF-650.