Brake fluid/bleeding the brakes...
Reply #9 –
you can use 3 or 4. don't use 5. you CAN mix them, but it wouldn't be as good as 4 by itself. you can bleed the brakes with the wheels on, but it's much easier with them off. go R/R, L/R, R/F, L/F. gravity bleeding's great if you have the patience.