Purpose and Specifications

Motul Motylgear 75W90 is a synthetic transmission and differential oil designed for manual gearboxes, transfer cases, and differentials in cars and light trucks. This 5-liter container meets API GL-4 and GL-5 standards, making it suitable for most modern vehicles with mechanical transmissions.

The 75W90 viscosity grade means the oil flows easily when cold (75W rating) but maintains a protective film at high engine temperatures (90 grade). This dual performance reduces gear noise and makes shifting smoother, especially in winter or when the engine is cold.

• Operating Temperature Range: -45°C to +200°C (handles extreme cold and heat)
• Density: 0.868 g/cm³ at 15°C
• Flash Point: 200°C (safe handling and storage)
• Synthetic Base: Provides longer oil life and better protection under heavy loads

When to Use / Replace?

Replace your transmission oil according to your vehicle manufacturer's maintenance schedule, typically every 40,000 to 80,000 km or annually, whichever comes first. Check your owner's manual for exact intervals. This oil is ideal if your gearbox is hard to shift, noisy, or operates under heavy towing loads.

Best For: Manual transmissions, synchronised and non-synchronised gearboxes, differentials without limited-slip systems, and transfer cases in trucks and SUVs.

Storage: Keep in a cool, dry place. Sealed containers maintain quality for extended periods when stored properly.

Frequently Asked Questions

Q: Can I use this oil in my automatic transmission?
A: No. This is formulated for manual transmissions and differentials only. Automatic transmissions require different fluid (ATF). Using the wrong fluid damages your transmission.

Q: Why is my gearbox noisy, and will this oil fix it?
A: Noise often comes from worn gears or low oil level, not just poor oil quality. Motylgear 75W90 reduces friction and noise in healthy gearboxes, but if noise persists after an oil change, have a mechanic inspect for internal wear.

Q: How do I know when to change the oil?
A: Follow your vehicle's service manual. Signs of needed replacement include difficulty shifting, grinding sounds, or dark, burnt-smelling oil on the dipstick. Most vehicles need changes every 1-2 years or 40,000-80,000 km.