Can the tire swapping really extend the tire life?
Consumers and even tire stores have been convinced that tire swapping can extend the life of tires. Is that really ok? You can choose to change the position when the tire is worn. If one side really wears faster and the wear is uneven, then the problem that cannot be solved when changing tires can be more serious.
For trucks and buses:
Because of their longer life span (road driving), trucks and buses often need to be replaced in about 2 years. And most of the trucks and buses are divided into steering wheels and driving tires and trailer-specific tires. In the same way, if there is uneven wear of the tires, it may solve the temporary problem or cover up the problem after transposition, and the problem of uneven wear may not be solved at all. That is usually a problem with vehicle positioning.
So whether the tire swap is useful or not is generally useful, increase mileage, reduce fuel consumption, etc. But the effect is limited.