Klotz Estorlin Free-Gear Hypoid Synthetic Gear Lubricant The Estorlin Free-Gear Hypoid Synthetic Differential Lube by Klotz Synthetics delivers unparalleled performance and protection for UTVs and Side-by-Sides. This premium lube is enhanced with high-performance additives to safeguard seals, combat corrosion, and prevent deposits. Its antifoam agents ensure optimal performance by eliminating aeration during high-speed operations, offering the ultimate care for your vehicle's differential system. Features: Designed for light-duty or heavy-duty axles Advanced additive package provides superior seal protection, corrosion prevention, and deposit mitigation Contains extreme pressure anti-wear chemistry to mitigate wear and extend gear life Antifoam agents suppress foam and prevent aeration during high speed operation Synthetic