[Answer] During routine vehicle maintenance the fluid level in the master cylinder reservoir is checked. When the reservoir cap is removed purple colored fluid is found in the reservoir. Tech A says that this means the fluid should be topped off with DOT 4 which has a slightly higher boiling point than regular brake fluid. Tech B says taht this means that the fluid is contaminated; all rubber parts in the system must be replaced and the system flushed. Who is right?A. Tech AB. Tech BC. BothD. Neither

Answer: D. Purple is the color of silicone fluid and only DOT 5 fluid should be used to top off the reservoir.
During routine vehicle maintenance the fluid level in the master cylinder reservoir is checked. When the reservoir cap is removed purple colored fluid is found in the reservoir. Tech A says that this means the fluid should be topped off with DOT 4 w…

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