It’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 • “Nitro” SAE 70: Formulated for gas, alcohol and nitro-methane fueled racing engines that experience extreme load and high temperature conditions. The high viscosity of the oil allows for excessive dumping of fuel “blow by” into the racing oil while maintaining critical protection.