HOW MUCH AIR DO I NEED TO PUT IN MY TYRES?

A major purpose of a tyre is to carry the load of the car. Therefore, it is important that the correct air pressure is maintained. Over inflating the tyre will cause rapid and irregular wear.
Under inflating the tyre will cause structural damage which is very dangerous.
For optimum performance maintain the air pressure that is recommended by the vehicle manufacturer and/or the tyre manufacturer.