Yes. All-Wheel Drive will help get you going in winter conditions but will fall short when turning or stopping.
Yes. The presence of dirt, sand, rust, or grit between surfaces such as the threads of the nut or between a nut and the wheel can also create “false torques” during the initial installation. The wheel nuts/bolts must be checked again to ensure they are secured.
No. All-season tires are only designed to perform well in temperatures above 7oCelsius. For colder temperatures an All-weather or Winter tire is necessary.
New tires provide better wet grip than your half-worn tires. When new tires are installed on the rear, it helps reduce oversteer and the potential for your vehicle to fishtail and lose control in wet conditions
The tire size for your vehicle can be found on the inside frame of the driver side door.
It is best to install them when the temperature drops below 70C.