7 degrees Celsius, or 45 degrees Fahrenheit, as per Volvo tests. Above 7C, all-season & summer tires get better the warmer it is. Below 7C, winter tires get better the colder it is.
A 4x4 truck with good winter tires.
No need to change sizes with winter specialty tires. If your vehicle came with p235/75r15 tires, you can install the same size in a winter tire. Congrats on selecting a superior traction tire for safe winter driving, I suggest looking into the Nokian line of winter specialty tires if they are available in your area.
if they are the right size for your vehicle and its a Small truck then yes
You should make sure that the tires you are purchasing fit the vehicle that you have. You should also look for tires that have a warranty in place.
If you are driving in the area where the road is slippery to use winter tires.
Winter tires are crucial for safety during the winter months. The better grip are important for both stopping in time and accelerating on ice. It is suggested everyone buy a set of winter tires, they could save your life.
It is located on the drivers side of the vehicle in the duct that flows air to your tires
I am driving a 2001 XK8 in winter in New England. Just use all season tires- I chose Kumho Ecsta LX Platinum tires for better snow and cold temperature performance.
It is recommended that all four tires on your vehicle be equal to one another, to avoid an uneven setting of tires. Really, it mostly depends on your definition of 'best'. If the 'best' tires are the more inflated tires, then you shouldn't put them on your vehicle at all. Usually, the better tires should go on the back of the vehicle (the two rear tires). However, if the better tires are vastly better than the other tires, then do not put them on your vehicle, because it would cause unbalancing in the vehicle, and other issues.
No, you don't have to. Air is air, no such thing as summer or winter air just check and maintain the proper air pressure required for your vehicle.
Yes, it is generally cheaper to keep summer and winter tires on their own rims
Both Winter and Snow tires have a more aggressive tread pattern and are made of a softer rubber that grips better in cold weather. I believe that snow tires have a still more aggressive tread pattern than winter tires.