Purpose and Specifications

WOLF EXTENDTECH 75W90 GL 5 1L is a semi-synthetic transmission oil designed for manual gearboxes, differentials, and hypoid rear axles, especially in high-power cars, SUVs, and all-wheel drive vehicles. It delivers smooth gear shifting, superior anti-wear protection for longer transmission life, and extended oil durability thanks to its high viscosity index that keeps it flowing easily at low temperatures down to -40°C and stable at high operating temps up to 150°C.

Meets key specs like API GL-5, API GL-4, and MIL-L-2105C for reliable performance in demanding conditions. Perfect for SAE 75W-90 and 75W-85 applications, including limited-slip differentials.

When to Use / Replace?

Use this oil in manual transmissions and axles requiring GL-5 protection to prevent wear under heavy loads. Replace every 60,000-100,000 km or 3-5 years under normal driving, or sooner at 30,000-50,000 km for severe conditions like towing or off-road use. Shelf life is 5 years when stored properly in a cool, dry place.

Frequently Asked Questions

Is WOLF EXTENDTECH 75W90 GL 5 suitable for limited-slip differentials?
Yes, it provides the right frictional properties for smooth operation in limited-slip and lock-up differentials.

Can I use it in cold climates?
Absolutely, its 75W rating ensures easy cold starts and fluidity down to -40°C without thickening.

How long does this transmission oil last?
Expect 60,000-100,000 km service intervals, extending transmission life with its oxidation-resistant formula.