We used normal auto brake fluid (DOT 4) and discovered later this is not acceptable and we should have used the brake fluid below....... Hence we had to take out the four master cylinders to replace the seals, drain original brake fluid, clean out the hoses and replace seals at the brakes.
EMAIL RECEIVED -: For the Cleveland brakes, master cylinders & parking brake valve, you should be using MIL-H-5606 red oil (fluid). At this point I would recommended changing back to the red oil & change the o-rings with automotive fluid was used for any length of time.
If I can be of any additional assistance, please do not hesitate to contact me.
