Car tires must be able to handle a number of conflicting requirements in order to make optimal use of the available performance of the modern vehicle.
Tires must be stronger to resist and absorb impacts and, at the same time, be flexible. It must respond accurately to steering movements and not be deflected by road ridges. In terms of safety, tires must provide good grip and traction during acceleration, cornering and braking, and must do all of this in all weather conditions, and on wet and dry surfaces. From the layman’s point of view, tires should run quietly, give a comfortable ride, and have a long service life. Modern tires are tough and tough with built-in safety features that allow them to withstand and withstand the stresses of the latest driving conditions. However, there are several factors that will affect and also the tread wear rate such as cornering, braking, harsh acceleration, speed, wheel alignment, road surfaces, weather conditions and tire pressure.
Tire pressures are determined by three factors:
- The type and size of tire being used.
- The load to which the tire is subjected.
- The speed at which the tire will be used.
Correct tire pressure is the foundation of tire care. It is the air in the tire, not the tire itself, that supports the weight and load of the vehicle.
Incorrect tire pressure has a marked effect on the tread wear rate and handling characteristics of the vehicle. It is very important to ensure that the tire pressure is maintained with the use of a reliable and accurate pressure gauge. Don’t trust an unfamiliar meter. It is always best to carry your own tire pressure gauge from a good brand. Accuracy can be poor, but consistency is what matters, as long as you know how much it is above or below your meter reading. Determining actual pressure appears to be complex, but there are basic principles that, if adhered to, facilitate determination.
The first step is to establish the size and type of tire for your car. This can be done by looking at the sidewall of the tire where the tire size and type of your car is. This can be done by looking at the sidewall of the tire where the size and tire will be molded, such as 7.50-14 or 185 SR14.
The second step is to consider your type of driving requirements, which can be:
- Normal motoring, which is usually with 2 or 3 passengers and speeds of up to 100 km / h
- Heavy load condition: more than 2 or 3 passengers plus luggage
- High speed motor, which is continuous high speed greater than 100km / h.
The third step is to consult your owner’s manual. It contains recommendations for the pressure to be used under your chosen driving conditions.
If none of these sources are available, then it is necessary to contact the vehicle dealer or tire dealer for a quote:
- Tire size and type and
- The type of driving that best describes your driving requirements.
Always remember that all tire pressures listed are absolute minimum figures and may be increased by 2 or 3 psi (14 or 21 kPa) for optimal handling and service life. It should also be remembered that there are limits that must be observed and should not be exceeded these pressures:
32 psi (221 kPa) for 4-ply-rated bias tires
36 psi (248 kPa) for 6-ply grading bias tires
40 psi (276 kPa) for 8-ply-rated bias tires
40 psi (276 kPa) for all radial ply tires
or the maximum pressure stamped on some tires, which may be a lower number.