Lucas Anti-Squawk / Anti-Shudder Additive was developed to specifically address squawk noise in gear and transmissions of agricultural equipment at initial startup. 16 ounces of product eliminates the noise and is suitable for use in temperatures well below freezing. Our product also has been proven to be effective in reducing shudder in automotive transmissions including Hondas. Eight (8) ounces completely eliminates shudder and provides cold temperature protection down to -26?C. For use in transfer cases (4 to 8 ounces), positrac differentials (8 ounces), and hydraulic fluids in tractors (2 ounces).