When making additions of fluid to the clutch master cylinder, use only fresh, uncontaminated brake fluid meeting or exceeding DOT 3 standards.
See Figure 1
Check the fluid level in the clutch master cylinder reservoir every two weeks. The fluid should be maintained to a level between the "MIN" and "MAX" lines on the reservoir and not above the top line. Any sudden decrease in the level in the reservoir indicates a probable leak and should be investigated and repaired immediately.
When making additions of fluid, use only fresh, uncontaminated brake fluid meeting or exceeding DOT 3 standards. Be careful not to spill any brake fluid on painted surfaces, because it eats paint. Do not allow the fluid container or master cylinder reservoir to remain open any longer than necessary; brake fluid absorbs moisture from the air, reducing its effectiveness and causing clutch line corrosion.