HIGHTEC TOPGEAR S 75W-90 is a fully synthetic, high-performance multi-grade gear oil for demanding manual gearboxes and axle drives. Its synthetic base delivers outstanding wear protection together with effortless gear changes even when cold, while cutting drivetrain losses to support fuel economy.

Purpose and specifications

This oil is designed for manual transmissions and axle gears in passenger cars and commercial vehicles requiring a fully synthetic GL4/GL5 lubricant. It meets API GL4, API GL5, API MT-1, SAE J2360 and MIL-PRF-2105 E, with approvals including MAN 341 E3, MAN 342 Type M3, ZF TE-ML 12N, ZF TE-ML 17B, VW G 50, BMW OSP, MB 235.72 and VOLVO 97312.

• 20L container for a complete gearbox or axle oil change
• 75W-90 synthetic grade allows easy shifting from approximately -40 C to high operating temperatures
• Robust anti-wear protection for gears and synchromesh under heavy load
• Reduced internal friction supports improved fuel efficiency

When to use / change?

Select this oil where a fully synthetic 75W-90 GL4/GL5 gear oil is prescribed for your manual gearbox or differential. Replacement typically occurs around 80,000 km or according to the manufacturer's service plan. It operates reliably from about -40 C to +140 C. Stored unopened in a cool, dry place, shelf life is approximately 5 years.

Frequently asked questions

Is this oil suitable for limited-slip differentials?
It meets GL5 and MT-1 standards for hypoid and heavy-duty axles; for limited-slip units confirm the LS requirement in your manual.

Why choose synthetic over a mineral gear oil?
The fully synthetic base gives wider temperature stability, easier cold shifting and longer service intervals.

Can it be used in commercial vehicle gearboxes?
Yes, it carries numerous MAN, ZF, Scania and Volvo commercial approvals.

Suitable for: BMW 3 Series, BMW 5 Series, Volkswagen Golf, Ford Focus, Mercedes-Benz Sprinter, MAN TGX. Always verify the exact approval against your vehicle's owner manual before use.