Definitions for "Opposite Lock"
It is used to control a car when it is oversteering and its back is swinging wide. It offers a system in which the steering wheel is turned in the direction away from where the car is turning.
Turning the wheels opposite to the direction the car is heading. Octane A number that indicates the anti-knock quality of automotive gasoline.
Turning the steering wheel in the opposite direction of the turn until it won't turn anymore. Basically, it's maximum countersteer and usually precedes a spin or going off the track.