ROWE HIGHTEC HIGH PERFORMANCE GEAR OIL SAE 90 is a mineral-based, high-performance gear oil developed for marine drives and outboard engines. It is proven in heavily loaded sterndrives, including Mercruiser NXT and Bravo One XR units running behind supercharged engines above 660 kW (900 HP). Its robust film keeps gears protected under the high torque and shock loads typical of powerful boat drivetrains.

Purpose and specifications

This oil is intended for boat drives, sterndrives and outboard lower units that require a heavy SAE 90 gear lubricant. It has been tested in Mercruiser NXT and Bravo One XR drives and is also ideally suited to Volvo Penta and OMC drives. The single-grade SAE 90 viscosity is matched to high-load marine final-drive gearsets that operate in the presence of water.

• 1L container for a complete drive or lower-unit gear oil change
• Stable SAE 90 film that holds up under the heat generated by high-output marine drives
• Strong protection of gears and bearings against wear, pitting and water-related corrosion
• Proven performance behind engines above 660 kW (900 HP) for demanding power-boat use

When to use / change?

Choose this oil for marine sterndrives and outboard gearcases specifying an SAE 90 lubricant. Change the gear oil at the drive maker's service interval, commonly once per season or every 100 operating hours, and inspect for water contamination at each change. The working range suits typical marine conditions of roughly -10 C to +40 C. Stored sealed in a cool, dry place, shelf life is approximately 5 years.

Frequently asked questions

Which drives is it tested for?
It is tested in Mercruiser NXT and Bravo One XR drives and is also suited to Volvo Penta and OMC drives.

Can it handle high-horsepower engines?
Yes. It has been validated behind supercharged engines above 660 kW (900 HP).

What if I find water in the old oil?
Milky oil indicates a seal issue. Have the drive inspected and the seals serviced before refilling.

Suitable for: Mercruiser NXT, Mercruiser Bravo One XR, Volvo Penta drives, OMC drives. Always verify the exact approval against your vehicle's owner manual before use.