What fluid should I use in the master cylinder with my Hydramax system?

Use only DOT3 or DOT4 high temperature non-silicone brake fluid. Use of other petroleum based fluids will result in O-ring seal failure. A high temp race grade DOT4 fluid is recommended to reduce heat absorption. We recommend EBC, Wilwood, or Pentosin brands of high temp fluid for their high boiling point and excellent stability.

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