Best 75W 140 Gear Oils in 2026

ADVANCED PROTECTION AGAINST the four main causes of engine breakdown: wear friction heat and deposits

40% BETTER WEAR PROTECTION vs. industry standard as tested in the Sequence IVB engine test

25% BETTER DEPOSIT PROTECTION with superior engine cleaning detergents as tested in the GMOD engine test

Mobil 1 Synthetic Gear Lube Ls 75W-90 Mobil 1 Synthetic Gear Lube Ls 75W-90 Is A Supreme Performance, Synthetic, Multi-Purpose, Sae 75W-90 Automotive Gear Lubricant Designed To Meet The Highest Level Of Performance Requirements Of Modern Passenger Vehicles In All Types Of Operating Conditions, Including Limited Slip Applications, As Well As Delivering Outstanding Power Transfer Performance

Compared To Conventional Hypoid Gear Lubricants, Mobil 1 Synthetic Gear Lube Ls 75W-90 Performs Exceptionally Well Over A Wide Range Of Temperatures

Through Creativity, Productivity And Innovation - This Brand Continues To Develop The Finest Automotive Accessories

For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.

Fit Type: Vehicle Specific

Package Dimensions: 31.75 H x 15.24 L x 15.24 W (centimeters)

Country of Origin : United States

Synthetic blend 15W-40 diesel engine oil with Triple Protection Plus technology protects against wear, deposits, and oil breakdown

Ideal for on-highway fleets, construction, and agricultural machinery, and diesel pickup trucks — including high-power vehicles that require resistance to heat and stress

Improves low-temperature flow (compared to conventional 15W-40 oils)

Fit type: Vehicle Specific

Package Dimensions: 30.48 H x 16.51 L x 16.51 W (centimetres)

Country of Origin : China

For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.

Mobil 1 Synthetic Gear Lube LS is a supreme performance, synthetic, multipurpose, automotive gear lubricant

Meet or exceed the highest level of performance requirements of many modern passenger vehicles – including limited slip applications

Helps protect against thermal and oxidative degradation, wear and corrosion, and viscosity loss associated with premature shearing

Fit type: Vehicle Specific

Package Dimensions: 31.0 H x 15.0 L x 15.0 W (centimeters)

Country of Origin : China

Case of 2

Uses custom additives to provide the best performance in Visco-Lok & Smart-Lok differentials

Allows higher loads, superior shear stability and reduced oxidation

Package Dimension : 16 " L x 13 " W x 9.1 " H

Country of Origin: CHINA

Model Number : RED57914

WIDEST SPEC RANGE ON THE MARKET: widely compatible with a very large number of hypoid gear systems, differentials, transmissions and axle assemblies.

SEVERE SERVICE MAX: Exceptional shear stability and oxidation resistance. Polyphosphate EP proprietary additive system offers substantial improvement in performance over previous generation, low cost, gear oils

BUILT IN LIMTED SLIP ADDITIVE - Does not require "additional" LS additive. Its built into the product, optimized for all limited slip differentials, including those with built in wet brakes.

Specially designed for gear boxes without a wet clutch or hypoid rear axles

Extreme pressure, anti-wear, anti-corrosion and anti-foaming additives

100% Synthetic

Two Quarts SAE 75W-140 Synthetic Gear Lubricant

Meets or Exceeds the API GL-5, GL-4, MIL-L-2105D, MIL-Prf-2105E Specifications

Full Synthetic Gear Oil Professionally Blended with Premium Friction Modifier

Exclusive TriboDyn Additive Package Improves Metal Surfaces

One quart SAE 75W-140 Synthetic Gear & Axle Lubricant

Item Package Dimension: 11.33L x 8.73W x 3.53H inches

Item Package Weight - 2.08 Pounds

Item Package Quantity - 1

Extreme shear resistance and load carrying capacity without shearing | Exceptional protection for gears, syncrons | Limited Slip READY - No need for additional additives

Excellent product for use in heavy equipment applications which place higher performance demands on the drive train and differential lubricants | High quality base oils together with minimal use of VI Improvers offer outstanding shear stability

For use in limited slip differentials, posi-track and other LS differentials | Hypoid Gear Systems | Heavy Duty Transmissions | Provides high thermal stability and outstanding oxidation resistance

Meets American Petroleum Institute (API) GL-5 specifications for use in severe conditions

Meets General Motors Specification No. 9985182 meaning that the fluid meets a wide range of external and internal specifications including SAE J306

Meets ASTM STP-512A meaning that the lubricant resists deposit formation and assists in protecting against rippling, ridging, pitting, or spalling

✅ Extended gear and bearing life due to minimal deposits.

✅ Contribution to reduced maintenance cost and longer equipment life.

✅ Helps to reduce operating costs.