Its recommended for your donut spare to be ran 50 miles. Donut spares can be driven passed that limit but it can lead to unsafe driving conditions or there may be a possibility of suspension components breaking and/or not working properly.
If it is a full sized spare it should be the same as your other 4 tires and last just as long as they did.
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That depends. Is it an actual "spare tire"? A tire of actual size. Or a "donut" tire? A smaller version of a spare tire. That latter is also known as a "space saver" tire.
Greater as tire pressure raises as you drive and tires get hot.
No !!!!!!!!!!!
By donut tire, do you mean one of those cheap spares now provided by car makers as standard equipment instead of a real fifth tire. Those cheapies are supposed to be good for about fifty miles at 50mph. The two times I had to use one, I got the real tire fixed asap. Now when I buy a new car, I pay extra to have a real fifth tire included.
You can of course continue to drive it but it would seem you would not want to. A simple tire balance will solve the problem.
It is not safe at all to do so.
I wouldn't trust it. Have a Tire shop check it out soon.
You will destroy the tire and harm the bead seating surface on the wheel.
So long as you match the rear end gear ratio accordingly with your transmission final drive ratio and tire size, yes.
You cannot drive very fast with a fix-a-flat sealant in the tire. The exact speed depends on the weight of the car.
uh yea it does
Drive up to 100km and crash your car to a road divider.