[Lunatic]

O.B.J . . . OUTER BALL JOINT
O/GAG . . . OIL GAUGE
O/PRESS . . . OIL PRESSURE
O/PUMP . . . OIL PUMP
O/RUN . . . OVER RUNNING
O/S . . . OUTSIDE
OAP . . . OVER RUNNING ALTERNATOR PULLEY
OBD . . . ON BOARD DIAGNOSTIC SYSTEM
OBVR . . . ON BOARD VAPOR RECOVERY
OCC . . . OXIDIZING CATALYTIC CONVERTER
OCD . . . OUT CIRCLE DIAMETER
OCR . . . OVER CURRENT RELAY
OCR . . . OPTICAL CHARACTER READER
OCV . . . OIL CONTROL VALVE
OEM . . . ORIGINAL EQUIPMENT MANUFACTURER
OH . . . OVER HANG
OHC . . . OVER HEAD CAMSHAFT
OMR . . . OPTICAL MARK READER
OPERG . . . OPERATING
OPNG . . . OPENING
OPT . . . OPTION,AL
OS . . . ORDERING SPECIFICATION
OSRM . . . OUTSIDE REAR VIEW MIRROR
OTR . . . OUTER
OUTL . . . OUTLET
OVM . . . OWNER S VEHICLE MAINTENANCE
OVR . . . OVER VOLTAGE RELAY
OWC . . . ONE WAY CLUTCH
OZ . . . OUNCE