CAM2’s legendary, yet revolutionary, high zinc formula Blue Blood Racing Oils are designed to provide enhanced racing performance and unsurpassed wear protection in today’s high-revving, heavy-load competition engines. • High zinc levels for excellent anti-wear protection • Excellent oxidation stability in high performance engines • Hi-Performance Break-In Oil has a high level of performance additives to insure excellent anti-wear performance and protection during the initial start up and break in of new engines. This highly increased amount of zinc, phosphorus and sulfur chemistries is formulated to facilitate optimal ring seal and protect rotating assembly components such as the camshaft and valve train from initial start up wear. Additionally, maximum compression is provided along with maximum horsepower being generated. Our proprietary formula requires no additional additives.