... selection (bar, Kpa, Kg/cm2, psi)SCALE UNIT CONVERSION TABLE 1 BAR=100KPA EQUAL TOPSI(LB/IN2 ... tires:can improve gas mileage up to 10%improve car handling.How to useDetermine the proper pressure for ... gas mileage, handling, braking and durability.Caution:To avoid the possibility of eye injury, eye protection ... using this gauge.Do not exceed maximum pressure on gauge.Dropping or severe jarring may impair ...