Castrol Alphasyn EP 150 - Synthetic Gear Oil

- Castrol Engine Oils for Truck and Bus Engines
  - Castrol Vecton
  - Castrol CRB Range
- Castrol Off-Highway Oils
  - Castrol Off-Highway Engine Oils
  - Castrol Off-Highway Transmission Oils
  - Castrol Duratec Gas Engine Oils
- Castrol Passenger Car Oils
  - Castrol Edge
  - Castrol Edge Professional
  - Castrol Magnatec
  - Castrol Magnatec Stop-Start
  - Castrol Magnatec Professional
  - Castrol GTX
  - Castrol GTX Professional
- Castrol Gear Oils
  - Castrol Transmax Manual Range
  - Castrol Transmax Limited Slip
  - Castrol Transmax Universal
  - Castrol Manual EP Gear Oils
  - Castrol Transmax CVT
  - Castrol Axle
  - Castrol Syntrans
  - Castrol Syntrax
  - Castrol Classic Gear Oils
- Castrol Automatic Transmission Oils
  - Castrol Transmax ATF
  - Castrol Transynd
  - Castrol Classic Transmission Oil
- Castrol Motorcycle Oils
  - Castrol Power 1
  - Castrol Power 1 Racing
  - Castrol Fork Oils
  - Castrol Specialist Products
- Castrol Brake Fluids
- Castrol Coolants
- Castrol Classic Engine Oils
- Castrol Agricultural Oils
  - Castrol Agri MP Range
  - Castrol Agri Engine Oils
  - Castrol Agri Transmission Oils
  - Castrol Agri Hydraulic Oils
- Castrol Specialist Auto Products
- Castrol EV Fluids
- Castrol Transaqua
- Castrol Brayco Micronic
- Castrol Turbine Oils
- Castrol Wind Energy Products
- Garden Range
Equipment
- BP Discontinued
  - BP Automotive - Discontinued
  - BP Industrial - Discontinued
- Castrol Discontinued
  - Castrol Discontinued Automotive
  - Castrol Discontinued Aviation
  - Castrol Discontinued Industrial
  - Castrol Discontinued High Performance Lubricating Oils
  - Castrol Discontinued High Performance Lubricating Greases
  - Castrol Discontinued Metalworking Fluids

Castrol Alphasyn EP 150 - Synthetic Gear Oil