Gear oils have needed improving for years, especially in the hi-performance industry. The Lucas 80W-90 gear oil enjoys the technology Lucas develops in making the 'Lucas Heavy Duty Oil Stabilizer', the number one supplemental oil in the heavy duty industry. This gear oil formula is fortified with special anti-wear agents and lubricity agents to control wear and drag as well as special additives to control heat. These features application where plain gear oils just aren't good enough.