Hayes Dot 5.1 Brake Fluid, 4 OZ 199 kr 179 kr Dot 5.1 Brake Fluid, 4 OZ Bottle.Viscosity-stable across highest range of operating temperatures.4 OZ Size is perfect for home mechanic use. In stock. Add to basket Share Stock: 4 Article Number: 9836143 Information Reviews Dot 5.1 Brake Fluid, 4 OZ Bottle.Viscosity-stable across highest range of operating temperatures.4 OZ Size is perfect for home mechanic use.