Purpose and Specifications

Eurol Transyn 75W-90 GL4/5 is a semi-synthetic transmission oil designed for manual gearboxes and final drives in cars, trucks, and heavy machinery. This 20L bulk pack meets API GL-4 and GL-5 standards, making it a versatile choice that handles both everyday driving and tough conditions like towing trailers or off-road use.

It ensures smooth, easy gear shifting even in cold weather down to -42°C, while staying thick and protective at high engine temps up to 200°C flash point. Special additives cut fuel use, fight wear, prevent rust and foam, and maintain performance under heavy loads and vibrations for longer oil life.

• Perfect for synchromesh gearboxes - no grinding or sticking
• Reduces stock needs: one oil for GL-3/4/5 specs across your drivetrain
• Supports extended drain intervals up to 100,000 km or 24 months in normal use

When to Use / Replace?

Use Eurol Transyn 75W-90 GL4/5 in manual transmissions, differentials, and transfer cases calling for 75W-90 GL-4/GL-5 oil. Ideal for European brands like ZF, Mercedes (235.1/235.0), MAN, Volvo, Scania, and DAF. Check your owner's manual to confirm.

Replace every 60,000-100,000 km or 12-24 months, or sooner if towing heavy loads, driving in extreme heat/cold, or noticing hard shifting/noise. Shelf life is 5 years unopened in cool, dry storage.

FAQ

Q: Is this oil safe for my limited-slip differential?
A: Yes, its GL-5 rating and extreme pressure additives protect hypoid gears and LSDs under high loads without chatter.

Q: Can I use it in cold climates?
A: Absolutely - flows smoothly at -42°C pour point, making cold starts effortless.

Q: What's the benefit over cheaper oils?
A: Longer life, better protection against wear and heat, smoother shifts, and fuel savings from reduced friction.