Purpose and Specifications

WOLF EXTENDTECH 75W90 GL 5 5L is a semi-synthetic transmission oil designed for heavy-duty gearboxes, differentials, and hypoid axles in cars, SUVs, and all-wheel drive vehicles. It delivers smooth gear shifting, strong anti-wear protection for longer transmission life, and extended oil durability thanks to superior thermal stability.

This 75W90 viscosity oil flows easily at low temperatures down to -45°C for reliable cold starts, while staying thick under high heat up to 185°C. Meets API GL-5 and MIL-L-2105C standards for extreme pressure performance in demanding conditions.

When to Use / Replace?

Use in manual transmissions, rear axles, and transfer cases calling for SAE 75W90 GL-5 specs, especially high-power vehicles. Replace every 60,000-100,000 km or 3-5 years under normal driving; sooner at 30,000-50,000 km for severe use like towing or off-road. Shelf life is 5 years unopened when stored cool and dry.

• Ideal for hypoid gears under high loads
• Perfect for limited-slip differentials (LS version available)
• Handles operating temps from -45°C to 185°C

FAQ

Is this oil safe for my daily driver? Yes, it protects everyday cars and trucks with manual transmissions, providing smooth shifts and long gear life.

Can I mix it with other oils? Best to flush and use pure for full benefits; compatible with most GL-5 oils but check your manual.

How much for a typical change? 2-4 liters for most cars; this 5L pack covers one full service with extra.