OKAYA ULTIMAXE Lubricants

Reliable Gear Performance.
Heavy-Duty Transmission Power.

Engineered gear lubricants, high-impact hypoid axle oils, and fluid ATF designed for friction control and extended component life under heavy torque.

GEAR GOLD EP 75W-90 GL-5 GEAR GOLD EP 75W-85 GL-5 GEAR GUARD EP 85W-140 GL-5 GEAR GRAND EP 80W-90 GL-4 GEAR GRIP EP 140 GL-5 GEAR GLIDE EP 90 GL-4 Industrial EP Gear Oil ATF GAZE

Product Catalogue

Explore OKAYA ULTIMAXE Gear Oils & Transmission Fluids

Discover tailored formulations, exact pack configurations, and key engineering metrics across our automotive and industrial driveline range.

OKAYA ULTIMAXE
GEAR OIL GEAR GOLD EP 75W-90 GL-5

OKAYA ULTIMAXE® · GEAR & TRANSMISSION OIL

GEAR GOLD EP 75W-90 GL-5

Synthetic-Fortified Multigrade Hypoid Gear Oil for High-Stress Transmissions

OKAYA ULTIMAXE GEAR GOLD EP 75W-90 API GL-5 Gear Oil.

A high-performance multigrade gear lubricant engineered with synthetic-fortified base stocks to provide high load-carrying capacity across modern transaxles, manual gearboxes, and hypoid rear axles requiring API GL-5. Minimizes thermal breakdown during high-speed, heavy-haul conditions.

Key product features

SAE 75W-90 | API GL-5 Certified Smooth Cold-Weather Shift Response Fights Thermal Breakdown & Shear Protects Hypoid Ring & Pinion Gears

Available pack sizes

1 L 2.5 L 50 L 55 L 210 L

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OKAYA ULTIMAXE
GEAR OIL GEAR GOLD EP 75W-85 GL-5

OKAYA ULTIMAXE® · GEAR & TRANSMISSION OIL

GEAR GOLD EP 75W-85 GL-5

High-Efficiency Low-Viscosity Gear Lubricant for Precision Transaxles

OKAYA ULTIMAXE GEAR GOLD EP 75W-85 API GL-5 Gear Oil.

A precision-blended, low-viscosity extreme-pressure gear lubricant developed for passenger cars, SUVs, and commercial transaxles calling for SAE 75W-85 GL-5. Lowers internal churning drag to enhance fuel economy while shielding gear teeth against severe scuffing.

Key product features

SAE 75W-85 | API GL-5 Specification Reduced Drag for Enhanced Fuel Economy Anti-Scuffing & Tooth Flank Protection High Oxidation & Thermal Stability

Available pack sizes

1 L 2.5 L 50 L 55 L 210 L

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GEAR GUARD EP 85W-140 GL-5 OKAYA ULTIMAXE

OKAYA ULTIMAXE
GEAR OIL GEAR GUARD EP 85W-140 GL-5

OKAYA ULTIMAXE® · GEAR & TRANSMISSION OIL

GEAR GUARD EP 85W-140 GL-5

Heavy-Duty Axle Lubricant for Heavy Trucks & Shock-Loaded Differentials

OKAYA ULTIMAXE GEAR GUARD EP 85W-140 API GL-5 Gear Oil.

Engineered with a heavy hydrodynamic barrier and active extreme-pressure additives to withstand brutal tooth loading, high shock vibration, and sustained high torque in heavy commercial trucks, quarry haulers, and construction differentials.

Key product features

Heavy-Duty SAE 85W-140 | API GL-5 High Shock Load Absorption Barrier Prevents Micro-Pitting & Gear Scoring Reliable Viscosity Retention Under Heat

Available pack sizes

1 L 5 L 10 L 12 L 20 L 26 L 50 L 55 L 210 L

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GEAR GRAND EP 80W-90 GL-4 OKAYA ULTIMAXE

OKAYA ULTIMAXE
GEAR OIL GEAR GRAND EP 80W-90 GL-4

OKAYA ULTIMAXE® · GEAR & TRANSMISSION OIL

GEAR GRAND EP 80W-90 GL-4

Manual Transmission & Synchronizer Gear Oil for Commercial Fleets

OKAYA ULTIMAXE GEAR GRAND EP 80W-90 API GL-4 Gear Oil.

A multigrade gear lubricant formulated for commercial vehicle manual gearboxes, steering units, and drive systems specifying API GL-4. Formulated with controlled sulfur-phosphorus chemistry that is safe for copper and bronze synchronizers.

Key product features

SAE 80W-90 | API GL-4 Performance Non-Corrosive to Yellow Synchronizer Metals Prevents Oil Foaming Under Heavy Agitation Smooth Manual Shift Operation

Available pack sizes

1 L 2.5 L 5 L 7 L 10 L 20 L 26 L 50 L 55 L 210 L

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OKAYA ULTIMAXE
GEAR OIL GEAR GRIP EP 140 GL-5

OKAYA ULTIMAXE® · GEAR & TRANSMISSION OIL

GEAR GRIP EP 140 GL-5

Heavy Monograde Extreme Pressure Gear Lubricant for Commercial Axles

OKAYA ULTIMAXE GEAR GRIP EP 140 API GL-5 Gear Oil.

A heavy-bodied monograde gear lubricant built with active EP additives for transport vehicle rear axles, transfer cases, and worm/hypoid drives operating in high ambient temperatures requiring SAE 140 API GL-5 protection.

Key product features

SAE 140 Monograde | API GL-5 Heavy-Duty Cushion Under Extreme Torque Prevents Tooth Scoring & Welds Under Load High Resistance to Oil Shear Thinning

Available pack sizes

500 ml 1 L 5 L 10 L 20 L 26 L 50 L 55 L 210 L

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OKAYA ULTIMAXE
GEAR OIL GEAR GLIDE EP 90 GL-4

OKAYA ULTIMAXE® · GEAR & TRANSMISSION OIL

GEAR GLIDE EP 90 GL-4

Manual Gearbox & Transmission Lubricant with Synchronizer Protection

OKAYA ULTIMAXE GEAR GLIDE EP 90 API GL-4 Gear Oil.

A monograde gear lubricant engineered for automotive manual transmissions, steering gear housings, and farm machinery drives requiring an SAE 90 API GL-4 lubricant. Protects bearings and synchronizer rings against adhesive wear.

Key product features

SAE 90 Monograde | API GL-4 Safeguards Bronze Synchronizer Rings High Rust & Acid Neutralization Controls Oil Foaming and Sludge

Available pack sizes

500 ml 1 L 5 L 10 L 20 L 26 L 50 L 55 L 210 L

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OKAYA ULTIMAXE
GEAR OIL Industrial EP Gear Oil

OKAYA ULTIMAXE® · GEAR & TRANSMISSION OIL

Industrial EP Gear Oil

Heavy-Duty Enclosed Industrial Gearbox Lubricant Across ISO Grades

ISO VG 220 | ISO VG 320 | ISO VG 460 | ISO VG 680

Formulated for heavily loaded industrial enclosed gear drives including spur, helical, bevel, and planetary systems. Fortified with lead-free extreme-pressure chemistry to prevent micro-pitting, tooth flank scoring, and bearing fatigue.

Key product features

ISO VG 220, 320, 460 & 680 Viscosity Grades High Thermal & Oxidation Stability Rapid Water Separation (Demulsibility) Protects Bronze & Copper Gear Components

Available pack sizes

5 L 10 L 20 L 26 L 50 L 55 L 210 L

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OKAYA ULTIMAXE
GEAR OIL ATF GAZE

OKAYA ULTIMAXE® · GEAR & TRANSMISSION OIL

ATF GAZE

Automatic Transmission & Power Steering Fluid for Smooth Engagement

OKAYA ULTIMAXE ATF GAZE Fluid.

A high-viscosity-index automatic transmission and hydraulic fluid formulated with precision friction modifiers to ensure shudder-free clutch engagement, smooth steering pump operation, and low-temperature fluidity.

Key product features

High-Viscosity-Index Fluid Chemistry Shudder-Free Automatic Shift Quality Protects Internal Clutch Packs & Seals Multi-Use for Hydraulic & Power Steering Units

Available pack sizes

500 ml 1 L 5 L 10 L 15 L 20 L 26 L 50 L 55 L 210 L

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Engineering Best Practices

Selecting the Right Gear & Transmission Fluid

Match operating viscosity, API ratings, and additive packages to OEM recommendations to safeguard gears and synchronizers.

API GL-4 vs GL-5

Ensure API GL-4 is applied in manual transmissions with brass synchronizers, while GL-5 is selected for high-pressure hypoid axles.

Operating Viscosity

Select multigrade formulations (75W, 80W, 85W) for wide temperature ranges or heavy monograde (140, 90) for high ambient torque.

Industrial ISO VG Ratings

Industrial enclosed systems must match ISO VG (220 to 680) ratings to prevent gearbox churning, overheating, and oil foaming.

Technical Guidance: Always follow vehicle and machinery OEM specifications for lubricant grades. Official Technical Data Sheets (TDS) and safety documentation are provided upon request.

Need Bulk Commercial Supplies or Dealership Quotes?

Contact OKAYA ULTIMAXE® sales representatives for pail shipments, 210-liter barrel deliveries, and authorized distributor pricing.

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Reliable Gear Performance.Heavy-Duty Transmission Power.

Explore OKAYA ULTIMAXE Gear Oils & Transmission Fluids

GEAR GOLD EP 75W-90 GL-5

GEAR GOLD EP 75W-85 GL-5

GEAR GUARD EP 85W-140 GL-5

GEAR GRAND EP 80W-90 GL-4

GEAR GRIP EP 140 GL-5

GEAR GLIDE EP 90 GL-4

Industrial EP Gear Oil

ATF GAZE

Selecting the Right Gear & Transmission Fluid

API GL-4 vs GL-5

Operating Viscosity

Industrial ISO VG Ratings

Need Bulk Commercial Supplies or Dealership Quotes?

Reliable Gear Performance.
Heavy-Duty Transmission Power.