Wheels are out of balance
you may need more power steering fluid.
usually a drunk driver causes that really a few things can cause that broken spring, bad shockabsorbers, a flat tire or worn steering parts check your power steering fluid
At highway speed, tire out of balance or bent wheel. When stopping, warped rotor.
Probably your steering is out of alignment; or maybe a bent axle or wheelbase.
Alignment
i would really like to know myself
less stop and go driving causes less wear and tear on engine components.
maybe the car need to be linged up n check the power steering.
bearings old tires shock observers steering wheel
Loose steering: You notice how steering wheel is very easy to move and feels sloppy. It creates an difficult feeling on the highway because it seems you have no control of your car.POSSIBLE CAUSES: - Steering linkage is worn and parts need to be restored.- Steering linkage may be loose and need to be tightened.- Your steering box needs adjusting.
Check fluid level, (90 weight oil)
Worn steering parts, worn suspension parts, tires out of balance, out of alignment,