Castrol Heavy Duty Lubricants manufacture a full line of premium, extended service, lubricant products. Our greases, hydraulic fluids and engine oils, have been specifically engineered to exceed the severe duty demands of the refuse industry. Castrol's semi and full synthetic products provide refuse fleets with lower maintenance costs, less downtime, and increased operational efficiency. And Castrol's renowned Field Engineers will provide your business with the engineering solutions you need. Castrol Heavy Duty, Proven Experts in Operational Efficiency.