Castrol are a well known brand of oils, greases and similar lubricant products. Castrol is part of the BP Group of companies, but is retained as a separate identity.
The Castrol identity was a major step forward in development from the previous brand identities. The image recognition was kept and enhanced to endorse the identity into the market place. The logo was developed by Roger Clinton Smith and the team at Design International.
As featured and credited in the book Logo Life by Ron van der Vlugt.