Castrol AP, (all purpose) Gear Lubricant is formulated with high-quality base oils and additives that provide excellent load-carrying ability, EP properties, wear resistance, oxidation stability and anti-rust, anti-corrosion and anti-foam properties.
Castrol AP Gear Lubricants are multi-purpose, extreme pressure gear oils that are thermally stable and will provide transmission, differential and other application protection beyond that specified for the current MIL-PRF-2105E and API GL-5 requirements. This thermal stability extends oil service life and reduces critical component wear.
Castrol EP Gear Lubricants are exceptional quality gear oils that are designed for severe duty applications. Castrol EP Gear Lubricants offer excellent gear protection and possible extended lubricant usage with periodic checks by Castrol's Oil Analysis Program. Castrol EP Gear Lubricants are formulated with selected base oils that are coupled with an extremely stable sulfur/phosphorous additive package that make them the ideal choice where AGMA EP type gear oils are recommended.
Castrol EP Gear Lubricants excel in applications demanding superior U.S. Steel 224 performance.
Castrol Alpha™ HC Range (previously called Isolube™ Range) lubricants provide excellent performance in circulating
oil and gear set applications. Alpha HC lubricants contain technically advanced chemistries that exceed the performance
levels historically attributed to the traditional synthetic products. Alpha HC lubricants excel in applications requiring
optimum oxidation control and thermal stability, consistent anti-wear performance, and low carbon forming tendencies.
The uniqueness of the Alpha HC Lubricants is most visible in compressors that operate under severe field and
Castrol Alpha™ HC EP Range of lubricants (previously called Isolube EP) are a series of synthetic gear oils that exceed
the performance levels historically attributed to the traditional synthetic products that are available today. Alpha HC EP
Range lubricants are formulated to provide optimum wear protection in industrial gear sets, off-highway construction
and mining applications where consistent performance is critical. Alpha HC EP Range lubricants offer a unique
approach to gear and system component lubrication through a focused formulation that will provide the end user with
maximum confidence in the selected application.
Castrol Limited Slip Gear Lubricant is an extreme pressure, multipurpose gear lubricant that is friction modified to meet the requirements of many limited slip differentials. Castrol Limited Slip Gear Lubricant is thermally stable and will provide transmission, differential, and other application protection beyond the current API GL-5 requirements. This thermal stability extends oil service life and reduces critical component wear.
Castrol Syngear is a premium, synthetic, heavy duty, multi-grade gear lubricant that meets API GL-5
service. Castrol Syngear provides excellent cold weather performance, outstanding stability under higher
than normal operating temperatures, and substantial load carrying ability for cooler operation and longer
equipment life. Castrol Syngear is ideal for severe service environments and customers who want to extend
Castrol Worm Gear Lubricants represent current technology for the lubrication of industrial worm gear drives. Castrol Worm Gear Lubricants are compounded to provide extra lubricity and friction modification under heavy loads and temperatures. Castrol Worm Gear Lubricants excel in industrial worm gears where high starting loads are experienced.