Lucas Racing Transmission Fluid (5 quarts), AKA PATC Raptor Blood. Raptor Blood RTF is designed for high performance applications where heat and pressure are most damaging to your transmission and torque converter. Blended specifically for racing and performance by Lucas Oil, this fluid will lower transmission temperatures, extend clutch life, and maintain clean valves and passages. This fluid is also compatible with all types of transmission fluid. Shipped in 5 quart size only. Free shipping when ordered with a transmission. Works best when used with #47TOS Raptor Tamer below. Cost per 5 Quarts.