What does 'bar' displayed on a car mean?
2 Answers
When 'bar' is displayed on a car, it indicates that the tire pressure is either too high or too low. Here's some information about tire pressure: 1. Tire pressure, strictly speaking, refers to the air pressure inside the tire. There is a standard tire pressure indicator printed on the rear end of the driver's side door, which indicates the pressure when the tire is cold, i.e., when the car has been parked for at least three hours or driven no more than 1.6km. The most accurate tire pressure measurement is taken when the tire is cold. 2. Tire pressure is an indicator of the car's load capacity; the load capacity of a car depends on the level of tire pressure. Air pressure is the lifeblood of a tire; both too high and too low pressure will shorten the tire's service life.
As soon as I see 'bar' displayed on the dashboard, I immediately think of the tire pressure monitoring system. Bar is a unit of pressure specifically used to indicate the inflation pressure of tires. For example, a reading of 2.5 bar represents the current tire pressure condition. If it's too low, it might indicate a leak, increasing fuel consumption and the risk of a blowout; if it's too high, it affects comfort and braking performance. I remember that when my car displays the bar value and it's abnormal, the car automatically alerts me, at which point I need to pull over to check or go to a repair shop. I deeply understand the importance of tire pressure—once during a long trip, I almost had an accident due to insufficient tire pressure. Now, I always carry a simple tire pressure gauge with me and adjust it according to the standard range in the manual. The bar unit is very common; most cars in Europe and Asia use it, approximately equivalent to 14.5 psi, making conversion convenient. Safety first, don't overlook this small matter.
