(12) 2 oz Bottle of Dr. Tranny Lubegard Automatic Transmission Instant Shudder Fix A concentrated friction modifier formulated specifically for INSTANTLY eliminating torque converter lock-up shudder, Provides 4x's less wear than regular ATF, The original shudder fix, For long term benefit, use LUBEGARD ATF Protectant P/N 60902 (M465L) For use in ANY automatic transmission fluid. Not for use in Ford Type F or CVT applications. Packaged in a uniquely engineered two ounce application tube Dr. Tranny Instant Shudder Fixx is compatible with conventional or synthetic automatic transmission fluids. This formulation of friction modifiers made of synthetics and synthetic esters is concentrated five times!