Gear oils have needed improving for years, especially in the hi-performance industry. The Lucas 85W-140 gear oil enjoys the technology Lucas developed in making the "Lucas Heavy Duty Oil Stabilizer", the number one supplemental oil in the heavy-duty industry. This formula is fortified with special anti-wear agents and lubricity agents to control wear and drag as well as special additives to control heat. This feature is not found in ordinary gear oils.