1996 Ford F150 Owner's Manual - Page 347

2. Replace the filler plug in its original position, making sure it is fully seated. The Clutch The clutch on your vehicle is automatically self-adjusting and should not require any routine service. During normal operation the fluid level in the clutch reservoir will slowly rise. If for any reason the fluid level drops, maintain the fluid level at the step in the reservoir body. If it becomes necessary to remove the reservoir cap, thoroughly clean the reservoir cap before removing it to prevent dirt or water from entering the reservoir. Remove the internal diaphragm and then add only a DOT 3 brake fluid such as Ford High Performance DOT 3 Brake Fluid, meeting Ford specification ESA-M6C25-A. Clutch fluid reservoir 348