Blue Diamond Severe Duty Gear OIl
Blue Diamond® S8 75W-80 is engineered to deliver the protection of a 75W-90 with the efficiency benefits of a lighter viscosity. Built on a 100% PAO Group IV synthetic base oil and enhanced with FR3 Nano Technology and a purpose-built extreme pressure additive package, it reduces churning losses while maintaining exceptional wear protection.
Blue Diamond® S8 delivers 75W-90 protection with lighter-viscosity efficiency, helping fleets and owner-operators lower total operating costs without sacrificing durability.
- Up to 1.6% proven fuel economy improvement vs. leading FE 75W-90 oils (industry-recognized testing)
- All-year performance in extreme hot and cold environments
- Lower viscosity reduces churning losses with enhanced shear stability
- Extended drain intervals reduce maintenance and downtime
- Excellent gear wear protection and lower operating temperatures
- Strong thermal and electrical properties for eMobility applications
- Compatible with mineral and synthetic gearbox lubricants
- Potential reduction in Noise, Vibration & Harshness (NVH)