[asperformance]

Originally Posted by Dilligaf

Dot 5.1 has a much higher boiling point than the the DOT 4, so if you drive hard or on track the 5.1 is better, on the road it probably wont matter!

not totally true unfortunately as confusingly you can have various specs of dot4 fluid from budget discount centre stuff thro to full race fluid like RBF600, etc........

as with most things ideally you want the "best" fluid for your use and a sa general rule you cant go far wrong with the likes of motul 5.1 as a good all round fast road type fluid that will cope with light track use........next up would be the likes of the RBF600 & 660, but for extreme/race use now we use the newly released Performance Friction RH665 brake fluid
http://asperformance.com/uncategoriz...g-brake-fluid/