Engine Assembly Lube Oil VP Racing 12ozVP Assembly Lube has a stout base stock that provides superior protection against scuffing, galling and metal transfer during engine assembly and the critical break in process. It provides exceptional wear protection and is miscible (mixable) with synthetic and conventional oils. You're ensured superior protection for your cylinder walls, piston skirts, bearings, camshafts, cam lobes, lifters, wrist pins, and other valve train components. 12oz size.