Purpose and Specifications

EUROLUB GEAR UNI 80W-90 is a tough multi-grade transmission oil built for manual transmissions and axle drives in cars, trucks, and heavy machinery. It flows smoothly down to -26°C for reliable cold starts in winter, while staying thick and protective up to 100°C operating temps to prevent gear wear under heavy loads.

This oil delivers extreme pressure protection, reducing metal-on-metal contact during towing, off-road use, or high-torque conditions. It fights oxidation and corrosion for longer gear life, making it perfect for hypoid axles, differentials, and synchronized gearboxes.

When to Use / Replace?

• Use it in: Manual transmissions, rear axles, and transfer cases in moderate to warm climates or heavy-duty applications like trucks and tractors.
• Replace every 40,000-60,000 km or 24-36 months, or sooner if towing heavily or in dusty conditions.
• Shelf life: Up to 5 years unopened in cool, dry storage.
• Monitor temps: Ideal range 50-80°C; don't exceed 90-100°C without cooling to avoid breakdown.

FAQ

Q: Can I use this in cold winters?
A: Yes, it stays flowable to -26°C for smooth shifting, but for extreme cold below that, consider a 75W-90.

Q: Is it safe for my differential?
A: Absolutely, meets GL-4/GL-5 specs for hypoid gears, protecting against wear in high-load axles.

Q: How often should I change it?
A: Every 40,000-60,000 km or 2-3 years; check fluid level and color monthly for early signs of trouble.