RBF600 is a great hydraulic fluid, but not LV.
ATE SL.6, Pentosin DOT 4 LV and VW/Audi/Skoda/Seat DOT 4 LV are the ones to use. I believe Ford, Toyota etc have their own versions too.
LV fluid has the correct viscosity for our cars. Important when the weather is cold and the road are slippery. You wouldn't want the stability/ESP to potentially under perform.
FYI, I use ATE SL.6