The Red Line Heavy Shockproof Gear Oil is a high-quality automotive fluid manufactured in the United States by Red Line. With a unique shockproof formula, this gear oil is designed to provide superior protection for gears, bearings, and seals, ensuring longer-lasting performance and smoother operation. The heavy viscosity of this oil makes it ideal for use in high-wear applications, providing added protection against friction and wear for extended vehicle life. Ideal for use in a variety of gear systems, Red Line Heavy Shockproof Gear Oil is a top choice for car enthusiasts looking to enhance their vehicle's performance.