Mobil 1 75W-90 Synthetic Gear Lube 2-Quart Pack — Full Synthetic, High-Load Protection

Mobil 1 104361 75W-90 is a fully synthetic gear lubricant formulated to protect manual transmissions and differentials under high loads and wide temperature ranges.

Mobil 1's 75W-90 synthetic gear lube combines advanced base oils and performance additives to reduce wear, resist thermal breakdown, and maintain smooth operation. Supplied here as a convenient two-quart pack (1 quart each), this product suits passenger cars, light trucks, and many off-highway applications that specify a 75W-90 viscosity and compatible performance standards. Below is practical information to help you decide if this gear oil fits your vehicle and service needs.

What protection does Mobil 1 75W-90 offer for my transmission or differential?

This synthetic gear lube is engineered to provide robust wear protection, reduce friction, and help manage deposits that can affect gear life. It maintains viscosity stability at elevated temperatures and preserves lubricity in colder starts.

• High shear stability to retain film strength under heavy loads
• Corrosion and rust inhibitors for longer component life
• Detergent and dispersant additives to minimize sludge and deposits
• Improved cold-flow properties for easier shifting in low temperatures

How do I know this 75W-90 fits my vehicle?

Check your vehicle owner’s manual or service guide for the required gear oil viscosity and API/GL specifications. Mobil 1 75W-90 is suitable where 75W-90 synthetic gear oil is recommended and where its performance approvals match manufacturer requirements.

• Match viscosity grade: 75W-90
• Confirm OEM approvals or API/GL ratings listed by the manufacturer
• Compatible with many manual transmissions and limited-slip differentials when specified
• Ideal for service intervals where synthetic lubricants are preferred

What benefits will I notice after switching to Mobil 1 synthetic gear oil?

With synthetic formulation, expect more consistent shift feel, reduced gear noise from smoother film protection, and potentially longer fluid life than conventional oils. The improvement is most noticeable in vehicles experiencing heavy loading, towing, or wide temperature swings.

• Smoother shifting and reduced gearbox chatter
• Better thermal and oxidation resistance for longer service life
• Enhanced protection during high-torque conditions
• Lower tendency to form varnish and deposits

How should I store and handle the two-pack quarts?

Keep the sealed quarts upright in a cool, dry place away from direct sunlight and extreme heat. Use protective gloves when changing fluids and follow local disposal guidelines for used gear oil.

• Store upright, away from heat sources
• Seal containers after opening to prevent contamination
• Dispose of used oil at an approved recycling center
• Use recommended fill quantities and torque specs when servicing

Who is this for: Mobil 1 104361 75W-90 Synthetic Gear Lube (pack of 2 quarts) is aimed at do-it-yourselfers, independent technicians, and fleet managers seeking a reliable synthetic gear lubricant for manual transmissions and differentials. It's a good fit for vehicles that call for 75W-90 viscosity, drivers who tow or carry heavy loads, and anyone looking to upgrade from conventional gear oils to a synthetic formulation for improved temperature performance and wear protection.