antislip

Hi good folks, Are there known parameters for locking the differential mechanism, when exactly does it start to work? Is it certain speed and / or angle of front wheels? Is it amount of pressure I apply on the gas pedal? Is it all? I like it so much when the car is turning "flat", even there...

Right, not really an advert BUT i got some black anti-slip material given to me ive made a mat for the large area by the gearknob, long thinner pocket by handbrake and the one under the headlight control if your like me i was getting sick of not being able to put stuff in these without them...