The Power Behind Precision: Understanding Limited Slip Gear Oils – Introducing Oscar TFX 75W90 API GL-5 LS
By Oscar Lubricants
Whether it’s conquering a desert trail, hauling a heavy load, or accelerating through a tight turn, vehicles today are engineered for performance, control, and efficiency. One of the most critical yet often overlooked components that ensures this is the limited slip differential (LSD)—and it requires a very special kind of lubricant.
At Oscar Lubricants, we’re proud introduce Oscar TFX 75W90 API GL-5 LS, a premium fully synthetic limited slip gear oil designed to deliver maximum traction, smooth operation, and superior protection for today’s high-performance and commercial vehicles.
But what exactly makes limited slip gear oil different—and why does it matter?
What Is a Limited Slip Differential?
A limited slip differential (LSD) is a type of axle design that allows for differential wheel speeds—essential during turns—while limiting slip between wheels when one loses traction.
You’ll find LSDs in:
- High-performance cars
- 4×4 and off-road vehicles
- Heavy-duty pickups and SUVs
- Commercial transport applications
While conventional gear oils lubricate and protect the gears, they can’t provide the friction characteristics needed to ensure proper clutch engagement in LSDs. That’s where limited slip additives come in.
Why You Need a Special Gear Oil for LSD
Without the right oil, an LSD can:
- Chatter during low-speed cornering
- Wear out prematurely due to clutch plate glazing
- Fail to engage effectively, causing traction loss
Limited slip gear oils are engineered with special friction modifiers that reduce chatter while allowing smooth, controlled engagement of the clutch packs inside the differential.
Oscar TFX 75W90 API GL-5 LS is specifically formulated to meet these exacting demands.
Introducing Oscar TFX 75W90 API GL-5 LS
Developed using high-quality synthetic base oils and an advanced LS additive package, our latest product delivers:
Outstanding wear protection under shock-loading and extreme pressure
Friction-optimized performance for chatter-free LSD operation
Wide temperature stability for both cold starts and desert heat
Extended drain intervals for cost-effective fleet and performance maintenance
Excellent oxidation resistance and thermal stability
Key Specifications:
- SAE 75W90 viscosity grade
- API GL-5 performance level
- Designed for limited slip differentials, conventional gearboxes, and axles requiring GL-5 LS fluids
How It Works – The Science Behind the Smoothness
Oscar TFX 75W90 is engineered with
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Extreme Pressure (EP) Additives – To protect hypoid gears under high torque
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Friction Modifiers (LS Additives) – To manage clutch engagement in the differential without noise or judder
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Synthetic Base Oils – For fluid stability over wide temperature ranges, especially critical in UAE climates
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Corrosion Inhibitors – For long-term protection of copper alloys, seals, and internal surfaces
Our formulation has been tested in accordance with:
- ASTM D5182 for scuffing load capacity
- SAE J2360 requirements
- OEM field validation on SUVs and performance sedans operating in GCC terrain
One Oil, Many Applications
Oscar TFX 75W90 API GL-5 LS is the ideal choice for:
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Passenger cars with factory LSDs
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4WD vehicles and off-road trucks
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Light commercial fleets
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Performance vehicles requiring GL-5 with LS capability
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Workshops and service centers needing a single oil that covers both LSD and conventional gearboxes
Now Available Across the UAE and Export Markets
Oscar TFX 75W90 is offered in:
- 1L, 4L, 20L, and 208L packaging
- Bulk supply options for OEMs and distributors
- Private label solutions upon request
For technical datasheets, compatibility lists, or purchasing inquiries, reach out:
info@oscarlubricants.com
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