Elixir Synthetic LS GL-5 75W-85W-140 Case 12x1Qt

The Elixir Synthetic LS GL-5 75W-85W-140 Case is a professional-grade synthetic gear oil engineered for high-performance differentials, transfer cases, and manual transmissions in both street and off-road vehicles. This twelve 1-quart case delivers consistent lubrication across a wide viscosity range, making it ideal for mechanics and enthusiasts who demand reliable protection during extreme driving conditions, heavy towing, or competitive use. Whether you're building a modified truck with a aftermarket differential or maintaining a fleet of work vehicles, this multi-viscosity formulation addresses the thermal demands of modern drivetrain systems.

AMALIE's synthetic base stock and GL-5 additive package provide superior film strength and extreme-pressure protection critical for hypoid gear sets operating under shock loads and sustained high RPM. The 75W-85W-140 viscosity classification ensures rapid cold-start flow while maintaining robust viscosity at elevated sump temperatures, reducing gear scuffing and wear in both limited-slip and locking differentials. Synthetic formulation extends drain intervals and resists oxidation better than conventional mineral oils, delivering measurable cost savings over a vehicle's service life and minimizing the risk of thermal breakdown during sustained acceleration or extended grades.

This case format is perfect for shops, fleet operators, and serious enthusiasts who service multiple vehicles or perform regular maintenance on modified platforms with aggressive gear ratios. The bulk quart format reduces per-unit cost and ensures you maintain adequate supply for planned drivetrain maintenance, custom builds, or emergency top-ups during track events or remote expeditions. Confirm compatibility with your specific differential type—Dana, Ford 9-inch, GM 12-bolt, or independent rear suspension units—as gear lube selection directly impacts longevity and shift quality in manual gearboxes paired with modern limited-slip units.