Breaking in a new twin-disc clutch properly requires driving the vehicle conservatively for approximately 300 to 500 miles of regular, stop-and-go urban traffic conditions. During this specific break-in phase, drivers must completely avoid full-throttle acceleration, high-rpm clutch dumping, aggressive downshifting, track racing, and heavy towing. This gentle mileage accumulation allows the precision-machined friction discs, floating intermediate plates, and flywheel faces to mate evenly, establish uniform thermal transfer patterns, and cure the friction material compounds safely without inducing harmful hot spots or glazing. Adhering strictly to these manufacturer-recommended guidelines guarantees optimal clamping force, smooth low-speed engagement characteristics, and maximum operational longevity for the heavy-duty multi-disc system.