Best Gl 1 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

HIGH PERFORMANCE - Gear protection and longer synchro life. Recommended for GL-1, GL-3, and GL-4 applications, as well as where most special synchromesh fluids are specified

OFFERS QUICKER SHIFTS - Excellent gear and synchro protection, balanced friction control & slipperiness for easier shifting even in cold climates

SAFE FOR BRASS SYNCHROS - GL-4 Gear Oil lacks the reactive sulfurs found in most GL-5 oils that cause damage. Recommended for GL-1, GL-3 & GL-4 applications

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

Item Package Dimension 8.49999999133L x 3.99999999592W x 3.99999999592H inches

Item Package Weight - 1.69976404002 Pounds

Item Package Quantity - 1

Item Package Dimension: 8.81L x 4.05W x 4.05H inches

Item Package Weight - 1.75 Pounds

Item Package Quantity - 1

Package Dimensions: 5.08 H x 25.907 L x 13.208 W (centimeters)

Country of Origin : United States

Fit type: Vehicle Specific

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

Affordable Solutions

Provides rust protection

Ideal for shock loading applications

Lower unit gear oil formulated to protect against corrosion and excessive wear

Designed for outboard motor lower unit and sterndrive applications above 75 HP

Extreme pressure synthetic additives protect gears from metal to metal contact

50% More wear protection than industry standard with enhanced anti-wear additives that prevent unwanted metal-on-metal contact and provide an extra layer of protection that keeps your engine in excellent shape for the many miles ahead

Reduce costly repairs by minimizing exhaust system damage with our fully synthetic formulation

Minimize heat and abrasion between moving parts help your high-mileage engine maintain its horsepower and perform its best for longer

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)

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

GEAR LUBRICANT: GL-4 Multi-Purpose Gear Oil has low pour points and high temp properties to provide lubrication over a wide temp range. Our formula contains anti-rust and anti-wear EP additives to provide corrosion protection in drives and hypoid gears.

MULTI-PURPOSE: Our formula is not corrosive to copper; bronze; or other non-ferrous alloy bearings and bushings.

APPLICATIONS: This multi-purpose oil is suitable in use for auto; truck; and bus standard transmissions; and differentials requiring API/GL-3 and GL-4 oils. Safe for use on yellow metals.

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

EXTREME DRAIN INTERVALS - 500,000 miles for heavy-duty trucks and passenger cars. 750,000 miles for Class 8 highway trucks.

PROFESSIONAL GRADE - Unrivaled shear stability and longevity. Meets and exceeds API GL-5 and Limited Slip requirements and a very wide range of specifications across multiple OEMs.

EXCELLENT WEAR CONTROL - Up to 62% less wear vs OEM Specifications across various standards. EXCEPTIONAL LOAD BEARING CAPACITY - Exceeds the highest load test rating, Stage 14.

HIGH PERFORMANCE - Gear protection and longer synchro life. Recommended for GL-1, GL-3, and GL-4 applications, as well as where most special synchromesh fluids are specified

OFFERS QUICKER SHIFTS - Excellent gear and synchro protection, balanced friction control & slipperiness for easier shifting even in cold climates

SAFE FOR BRASS SYNCHROS - GL-4 Gear Oil lacks the reactive sulfurs found in most GL-5 oils that cause damage. Recommended for GL-1, GL-3 & GL-4 applications

Improved formula includes a grape scent for a more pleasant application experience

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

High quality formula manufactured to withstand high temperatures encountered during extended high-speed operation while retaining fluidity at cold temperatures

genuine oem factory part

exact fit

durable

STA-LUBE: Sta-Lube offers a range of high performance industrial greases, gear oils, service oils, fluids, hand cleaners, additives, and lubrication formulas. Our products have been rigorously tested to meet the highest quality standards.

GEAR LUBRICANT: GL-4 Hypoid Gear Oil has low pour points and high temp properties to provide lubrication over a wide temp range. Our formula contains anti-rust and anti-wear EP additives to provide corrosion protection in drives and hypoid gears.

MULTI-PURPOSE: Our formula is not corrosive to copper, bronze, or other non-ferrous alloy bearings and bushings.

SUPERIOR PERFORMANCE - High viscosity synthetic blend 80W-90 gear oil, designed for API GL-5, MT-1 service SAE J2360, and Mack GO-J

LONG TERM PROTECTION - Ideal for all engines over 100 hp, our gear oil provides exceptional long-term protection against rust and corrosion, extending your engine's lifespan

EXTREME PRESSURE ADDITIVES - Special additives ensure great thermal stability and anti-wear protection, even under high temperature conditions

Oil Type: Mineral-based

1-Liter Bottle

Hypoid Gear Oil SAE 85W-90 is a high-performance, high-pressure gear oil manufactured from carefully selected base oils and multifunctional "extreme pressure" additives. It is suitable for powered transmission and axle drives, especially for high-load hypoid transmissions.

maintains fluidity at low temperatures

Does not thin out at high temperatures

prevents rust

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.

Features Bel-Rays state of the art Extreme Pressure chemistry

Provides unsurpassed protection for heavily loaded shaft drive and final drive units, including limited slip differentials

Meets or exceeds API GL-4 and GL-5 requirements

✅ Extended gear and bearing life due to minimal deposits.

✅ Contribution to reduced maintenance cost and longer equipment life.

✅ Helps to reduce operating costs.

80w90 Premium Gear Oil is a petroleum blend for today's high performance shaft driven motorcycle

Special high shear strength polymers provide long lasting protection on all gear surfaces

Use in all motorcycle applications with separate clutch/transmission fluids

Full synthetic GL-4 75W-80 with PAO and Esters, manual transmission fluid. Exceeds all OEM fluid performance for 75W-80 gear, MT, differential, synchromesh, and transfer cases

No reactive sulfurs; protects all yellow metal components; extremely long drain intervals up to 5x OEM intervals

Contains a custom build, high-performance detergency adpack coupled with friction modifiers, defoamers, and a corrosion inhibitor to handle various kinds of contamination; features 204 VI Index, extreme viscosity stability, and arctic grade, -60­°F pour point

Made in United States

Package Weight :0.914 kg

Package dimensions :22.0 cm (H) x 10.2 cm (L) x 11.0 cm (W)

GL4, gear oil, driven racing oil

Price For: Each Four-Ball Wear: Not Specified ISO Viscosity Grade: Not Specified Lubricant NSF Rating: Not Rated Standards: API GL-4, GL-5 and MT-1; MIL-PRF-2105E, SAE J2360 Item: Gear Oil SAE Grade: 80W-90 Viscosity Index: 102 Application: For Autos/Light Duty Trucks Specific Gravity: 0.895 at 60 Degrees F Pour Point: -30 Degrees C Timken OK Load: Not Specified

Flash Point: 410 Degrees F Container Size: 32 oz. Container Type: Drip Can Base Oil: Mineral Country of Origin (subject to change): United States