Purpose and Specifications

Shell Spirax HD 80W-90 is a premium heavy-duty gear oil designed for manual transmissions and differentials in trucks, cars, and off-road equipment. This API GL-5 rated oil delivers extreme pressure protection to prevent gear wear and scuffing under high loads, shock conditions, and temperatures up to 150°C.

It flows smoothly in cold starts down to -27°C and stays thick during hot operation, making it ideal for year-round use without seasonal changes. The advanced additives resist oxidation, keep parts clean, fight rust and corrosion, and maintain performance for extended periods.

• Perfect for hypoid gears, manual transmissions, differentials, and wheel bearings
• Protects against wear in high-speed/shock load and low-speed/high torque scenarios
• 1-liter bottle for easy handling and precise filling

When to Use / Replace?

Use Shell Spirax HD 80W-90 in heavy-duty trucks, passenger cars, construction equipment, and motorcycles with separate gear units. Ideal for moderate to severe conditions like towing, hauling, or off-road driving.

Replace every 50,000-100,000 km or 24-36 months, depending on vehicle load and operating conditions. Check fluid level monthly and inspect for contamination. Shelf life is 3-5 years when stored in a cool, dry place.

FAQ

Q: Is this oil suitable for limited-slip differentials?
A: For standard differentials yes, but limited-slip units may need Shell Spirax LS instead - check your owner's manual.

Q: Can I use it in all seasons?
A: Yes, the 80W-90 multigrade works from -27°C cold starts to 150°C high heat without viscosity breakdown.

Q: How often should I change it in a daily driver truck?
A: Every 60,000 km or 2 years for normal use; more frequently (40,000 km) for heavy towing or dusty conditions.