Select a letter to go to the terms beginning with that letter.

OA
Operability Additive
OBD
On-Board Diagnostics
OCP
Olefin Co-Polymer
ODI
Oil Drain Interval
OECD
Organisation for Economic Co-operation and Development
OEM
Original Equipment Manufacturer
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
Performance you can rely on.