75w90 Gear Lube Case 12x1 Qt

The 75w90 Gear Lube Case 12x1 Qt from Mobil 1 is the professional-grade lubricant every serious gearhead keeps in their shop. Whether you're running a high-performance differential, manual transmission, or transfer case on a lifted truck or track-prepped vehicle, this synthetic formulation is engineered to handle extreme pressure and temperature swings. This case includes twelve 1-quart bottles, making it ideal for fleet maintenance, frequent fluid changes, or keeping backup supply on hand.

Mobil 1's 75w90 is a full synthetic hypoid gear oil designed specifically for limited-slip and locking differentials, as well as standard open differentials that demand robust film strength under shock load. The 75w winter grade ensures pumpability in cold climates, while the 90 summer grade maintains viscosity stability under sustained high-torque stress—critical when you're launching hard or towing heavy. Advanced anti-wear additives protect ring and pinion gears from scuffing, while enhanced oxidation resistance extends drain intervals and keeps sludge from building up in tight gear meshes.

Mechanics and modifiers trust Mobil 1 75w90 for aftermarket differentials, performance axle swaps, and vehicles operated beyond stock duty cycles—from off-road buggies and trail rigs to road-course competitors. Always verify your application's OEM or differential manufacturer specifications before use; some limited-slip units require friction modifier additives or synthetic-compatible friction materials. This case format reduces per-quart cost and minimizes packaging waste, making it the smart choice for shops managing multiple vehicles or building inventory for seasonal maintenance.