Purpose and Specifications

WOLF OFFICIAL TECH 75W90 GL 5 is a full synthetic transmission oil designed for heavy-duty trucks, buses, and commercial vehicles. It delivers superior protection for manual gearboxes, axles, and differentials under extreme conditions like high-speed shock loads or low-speed high-torque operations.

This 20L drum uses premium PAO base oils that stay fluid down to -40°C for easy cold starts and maintain thickness up to 200°C to prevent gear wear during heavy hauling. Approved by top manufacturers including ZF (TE-ML 02B, 05A, 12L, 12N, 16F, 17B, 19C, 21A), MAN (342 S1, 339 Z2, 342 M3), MB (235.11, 235.8), SCANIA STO 1:0, VOLVO 97312, and API GL-5/MT-1, it ensures smooth, vibration-free power transfer and long component life.

• Protects gears in temperatures from -40°C to +150°C daily use
• Reduces downtime with excellent oxidation resistance for stable performance
• Ideal for ZF driveline parts in final drives and half-shafts

When to Use / Replace?

Use this oil in heavy-duty mechanical transmissions during routine services or repairs on compatible vehicles. Replace every 100,000-150,000 km or 12-24 months under normal conditions, or sooner at 60,000-80,000 km for severe duty like towing or off-road. Shelf life is 5 years unopened in cool, dry storage.

Perfect for fleet operators needing reliable lubrication that cuts maintenance costs and extends gear life.

FAQ

Is WOLF OFFICIAL TECH 75W90 GL 5 suitable for my truck's ZF gearbox?
Yes, it meets all key ZF TE-ML specs (02B, 05A, 12L/N, 16F, 17B, 19C, 21A) for safe use in ZF transmissions, axles, and differentials.

Can it handle winter starts?
Absolutely, it flows smoothly at -40°C and below, preventing startup damage in cold climates.

How often should I change it?
Every 100,000 km or annually for standard use; check oil condition and halve intervals for heavy loads.