Driven GP-1 80W-90 is a conventional GL-5 limited-slip gear oil formulated from premium Pennsylvania base oils that deliver natural film strength, tack, and tenacious cling without shear-prone polymer additives. It provides shear-resistant, extreme shock-load protection for high-offset ring and pinion gears during racing, with foam-resistant additives and strong metal wetting.
Specifications:
- Product line: GP-1 Gear Oil
- Viscosity grade: 80W-90
- Service rating: GL-5
- Oil type: Conventional, limited-slip
- Container: 1 Quart
- Part number: 19890
Applications:
- Racing and high-performance differentials, limited-slip differentials, and transaxles. Use as recommended by the gear or differential manufacturer.
FAQ
Is GP-1 80W-90 safe for limited-slip differentials?
Yes. It is a limited-slip GL-5 gear oil intended for racing and high-performance differentials and transaxles.
Does it contain polymer viscosity improvers?
No. It is formulated from Pennsylvania base oils for natural film strength and cling without shear-prone polymer additives.
What is it designed to protect against?
It is built to resist shear and extreme shock loading on high-offset ring and pinion gears under racing conditions.

