Collier & Miller Griffith supplies high-performance gearbox oils engineered to protect complex transmission systems in tough regional conditions. Backed by decades of local expertise, we hold huge stocks locally of industry-trusted brands like Castrol, Hi-Tec and Nulon. From manual gearboxes and limited-slip differentials (LSD) to heavy-duty industrial and agricultural gear systems, our massive inventory of 75W-85, 80W-90, and 85W-140 formulas guarantees smooth shifting, ultimate wear protection, and the best local price—plus, enjoy free local delivery directly to Griffith and surrounds.