All Ferodo fluids are of Glycol based ether composition, and are suitable for brake and clutch use. Additionally DOT 5.1 has the following characteristics: Recommended for road use Adheres to DOT 5.1 specification Very low viscosity means ideally suited for ABS / ESP braking systems Low viscosity down to -40°C optimises performance under all conditions Available in 4 bottle sizes Low corrosion Very low rubber swell