Motul SAE 90 Gear Oil 1L – Mineral Differential & Manual Transmission Fluid, LSD Compatible

Motul 90 PA is a mineral SAE 90 gear and transmission oil formulated for limited-slip differentials and manual gearboxes, offering strong anti-wear protection and smooth engagement.

This 1-liter Motul 90 PA gear oil is engineered to protect differentials, final drives and manual transmissions that call for SAE 90 mineral lubricants, including systems fitted with limited-slip (LSD) units. Its formulation balances extreme-pressure additives with friction modifiers so gears and clutch packs operate reliably while resisting wear, foaming and corrosion. Motul 90 PA meets API GL-4/GL-5 and MIL-L 2105 D specifications and is compatible with typical seals found in drivetrain assemblies.

How will Motul 90 PA improve gearbox and differential longevity?

Motul 90 PA reduces metal-to-metal contact under heavy loads by providing a durable lubricating film and extreme-pressure protection. That lowers wear on gear teeth and bearings, extending service intervals and helping maintain smooth gear engagement over time.

• Extreme-pressure additives cushion gear contact under high torque.
• Wear inhibitors protect bearings and gear teeth during repeated loads.
• Corrosion inhibitors guard internal components against moisture damage.

Is this product suitable for vehicles with limited-slip differentials?

Yes — Motul 90 PA contains friction-modifying components designed to support limited-slip differentials so clutch packs or worm gears engage without harsh grabbing or excessive chatter. It’s formulated to balance traction control with smooth operation rather than act as a dedicated racing additive.

• Friction modifiers reduce noise and vibration in LSD units.
• Compatible with many factory LSD setups when SAE 90 is specified.
• Helps maintain predictable limited-slip behavior during cornering and load changes.

What applications and equipment is Motul 90 PA recommended for?

This oil is intended for manual transmissions, rear axles and differentials that require a mineral SAE 90 lubricant and for systems where GL-4/GL-5 performance is specified. It suits daily-driven cars, light commercial vehicles and older performance machines that rely on mineral formulations rather than modern synthetics.

• Manual gearboxes and final drives specifying SAE 90 mineral oil.
• Limited-slip differentials requiring GL-4/GL-5 compatibility.
• Applications where seal compatibility with mineral oils is preferred.

How does Motul 90 PA perform under heavy or prolonged use?

The formulation is designed for stable viscosity and anti-foam behavior under sustained loads, helping maintain a consistent lubricating film during long runs or demanding driving. Its additive package helps avoid rapid breakdown so protective properties persist between service intervals.

• Resists viscosity loss under moderate to high operating temperatures.
• Anti-foam agents ensure continuous lubrication and gear cushioning.
• Maintains seal compatibility to prevent leaks during extended service.

Who is this for? Motul 90 PA is aimed at owners and technicians who need a reliable mineral SAE 90 gear oil for manual transmissions, differentials and final drives—particularly when limited-slip compatibility is required. Choose this 1-liter bottle for routine top-ups, differential service, or when restoring classic and performance vehicles that specify mineral GL-4/GL-5 SAE 90 lubricants and seek a balance of smooth LSD operation, wear protection and seal friendliness.