Purpose and Specifications

WOLF EXTENDTECH 75W80 GL 5 1L is a tough transmission oil built for gearboxes facing high speeds, heavy shock loads, and strong torque at low speeds. It protects hypoid gears, spiral bevel gears, worm wheels, and most transaxles with extreme-pressure additives that fight wear, rust, corrosion, and oil breakdown for longer gear life.

This 75W80 oil flows smoothly in cold starts down to -45°C and holds strong under extreme heat, making it perfect for demanding drives. Meets API GL-5, MIL-L-2105C, and MIL-L-2105D specs for reliable performance in passenger cars and heavy-duty applications.

When to Use / Replace?

• Use it when: Your vehicle manual calls for GL-5 75W80 gear oil, especially in hypoid differentials or manual transmissions under tough conditions like towing, off-road, or high-mileage trucks.
• Replace every: 60,000-100,000 km or 3-5 years, or sooner if you notice grinding gears, slipping shifts, or burnt oil smell. Check levels monthly for heavy use.
• Best temps: Handles -40°C to +150°C operating range without thinning out or gumming up.
• Shelf life: 5 years unopened in cool, dry storage.

FAQ

Q: Is this oil safe for my daily driver?
A: Yes, it's great for passenger cars with hypoid gears, extending life under normal or hard driving.

Q: Can I mix it with other gear oils?
A: Best to fully drain old oil first for max protection, but it's compatible with most GL-5 oils.

Q: What's the 1L size for?
A: Perfect for top-ups or small transmissions; buy multiples for full changes.