Torco MPZ Engine Assembly Lube HP Tube - 5 ounce is favored by professional mechanics for assembling valvetrain components. The MPZ Engine Assembly Lube HP is a heavier version of the MPZ Engine Assembly Lube featuring a higher load carrying ability and extended lube film protection. It provides severe anti-wear, anti-friction and anti-scuff protection on cam lobes, lifters and other highly stressed valvetrain components. The MPZ Engine Assembly Lube HP is completely oil soluble. It is previously known as an MPZ Cam Lube. It is recommended for all high pressure points, including cam lobes, lifters bearings, and valve train components. It protects surfaces from scuffing, galling and wear during start-up.