Glossary
- OA
-
Operability Additive
- OBD
-
On-Board Diagnostics
- OCP
-
Olefin Co-Polymer
- ODI
-
Oil Drain Interval
- OECD
-
Organisation for Economic Co-operation and Development
- OICA
-
Organisation Internationale des Constructeurs d’Automobiles (formerly BPICA)
- OIT
-
Oxidation Induction Time
- OPEC
-
Organization of the Petroleum Exporting Countries
- OPEST
-
Oil Protection and Emission System Test
- ORI
-
Octane Requirement Increase
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