Purpose and Specifications

ORLEN HIPOL SEMISYNTETIC GL-5 75W-90 5L transmission oil is designed for manual gearboxes and differentials in cars, trucks, and heavy-duty vehicles. This semisynthetic gear oil meets API GL-5 standards, providing excellent protection against wear under high pressure and shock loads.

Its 75W-90 viscosity flows smoothly in cold starts down to -30°C for easy shifting, while staying thick at high temps up to 150°C to shield gears during towing or off-road use. The 5-liter container is perfect for complete refills, saving fuel and extending gear life with smooth operation across all seasons.

• Protects hypoid gears from extreme pressure
• Reduces friction for quieter, effortless shifts
• Resists breakdown in hot conditions over 80,000 km under normal driving

When to Use / Replace?

Use this oil in rear differentials, manual transmissions, and axles requiring GL-5 specs. Ideal for everyday driving, towing, or heavy loads where gears face high stress.

Replace every 50,000-60,000 km for normal use or 30,000 km for towing/off-road to keep temps in the safe 80-95°C range. At 105°C, fluid life drops to 40,000 km—check if shifting gets rough or fluid darkens. Shelf life is 5 years unopened in cool storage.

FAQ

Q: Is ORLEN HIPOL 75W-90 suitable for my 4x4 differential?
A: Yes, its GL-5 rating handles high-pressure hypoid gears perfectly for off-road or towing without metal-on-metal wear.

Q: How often should I change this gear oil?
A: Every 50,000-60,000 km normally, or 30,000 km under heavy use—inspect yearly if towing frequently.

Q: Will it work in cold winters?
A: Absolutely, the 75W flows easily below -30°C for quick protection on startup.