Purpose and Specifications

MOTUL GEARBOX 80W90 1L is a mineral-based transmission oil reinforced with Molybdenum bisulphide (MoS2) for superior protection in mechanical gearboxes. It meets API GL4 and GL5 standards, making it safe for synchronized and non-synchronized gearboxes, differentials, and transfer cases without limited-slip systems.

This oil excels under heavy loads and high temperatures up to 150°C, providing a strong lubricating film that reduces friction, wear, and gear noise for smoother shifting. The 80W90 viscosity flows easily in cold starts down to -12°C while staying thick during hot operation, ideal for motorcycles, cars, and trucks with demanding transmissions.

• Reduces gearbox noise and improves shifting precision
• Handles heavy loads at low speeds or moderate loads at high speeds
• 1L volume perfect for most manual transmissions

When to Use / Replace?

Use MOTUL GEARBOX 80W90 in noisy gearboxes or those under heavy use, like off-road vehicles or high-mileage bikes. Replace every 20,000-40,000 km or 24 months under normal conditions, or sooner (every 10,000 km) for severe duty like towing or racing. Shelf life is 5 years unopened when stored cool and dry.

Check fluid level and condition every 5,000 km; dark color or metal particles signal time for change.

FAQ

Q: Is this oil safe for my motorcycle gearbox?
A: Yes, it's specially recommended for noisy or loaded motorcycle gearboxes, delivering smoother shifts without harming yellow metals.

Q: Can I use it in differentials?
A: Absolutely, for standard hypoid differentials without limited-slip; it provides excellent protection under high heat and load.

Q: What's the difference from synthetic oils?
A: This mineral oil with modern MoS2 additives offers great value for everyday use, reducing noise effectively at a lower cost than full synthetics.