The most important product for proper flat tappet camshaft break-in available. This is true for both hydraulic and mechanical flat tappet camshafts. Virtually eliminates cam and lifter wear at initial break-in. Replaces the Zinc-Phosphates (ZDDP) removed from today’s oils. High levels of Zinc-Phosphates (60,000 ppm Zinc, 42,000 Phosphates), plus the addition of moly for extra protection. Compatible with all petroleum base and synthetic oils. Just add one 4 ounce bottle for up to 6 quarts of oil.