Purpose and Specifications

Eurol Fultrasyn 75W-90 GL3/4/5 is a fully synthetic transmission oil designed for manual gearboxes, final drives, differentials, and transfer cases. This 1L bottle delivers smooth gear shifting even in freezing cold down to -54°C pour point, while staying strong under heavy loads and high heat up to 230°C flash point. It cuts fuel use, prevents wear, rust, and foaming, and handles tough vibrations like towing trailers without thinning out.

Key specs include API GL-3/4/5 and MT-1 ratings, making it a versatile choice for cars, trucks, and heavy-duty vehicles from brands like MAN, ZF, Volvo, and Scania. Use it to rationalize your oil stock - one product fits multiple drivetrain needs.

When to Use / Replace?

Perfect for daily drivers, towing, or extreme weather. Replace every 60,000-100,000 km or 3-5 years under normal use; cut intervals in half for heavy towing or dusty roads. Shelf life is 5 years unopened in cool, dry storage.

Benefits: Easy cold starts, precise shifts, longer gear life, and better efficiency.

FAQ

Q: Is this safe for my synchromesh gearbox?
A: Yes, fully compatible - ensures buttery-smooth shifts at low temps without grinding.

Q: Can I use it in both front and rear differentials?
A: Absolutely, GL-3/4/5 covers manual transmissions, diffs, and final drives universally.

Q: How often should I change it?
A: Every 60,000 km or 3 years typically; check your manual and inspect for metal shavings.