Uneven tire wear is most often the result of too little or too much tire pressure. However, it can also be the result of improper wheel installation or poor wheel balancing, or a faulty shock absorber or rim.
Sawtooth wear on a tire tread is usually a result of vehicle overload.
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It is necessary to check the tire pressure at least once a month.
Tire pressure is checked on cold tires. Tire pressure increases when driving fast due to heat from friction with the road surface. But this is not a reason to lower the tire pressure.
If the tire pressure is too high, the center of the tire will wear out faster because it is more curved.
If the pressure is too low, the edges of the tires will wear out more due to the greater flexibility of the center of the tire.
Incorrect wheel installation or imbalance will produce a characteristic wear pattern that will easily identify the defects mentioned.