Subaru WRX 2018, Owner'S Manual, Page: 499 / 572

NOTE
.
The air pressure in a tire increases
by approximately 4.3 psi (30 kPa, 0.3
kgf/cm
2
) when the tire becomes warm.
.
The tires are considered cold when
you have parked the vehicle for at least
three hours or have driven less than
one mile (1.6 km).
WARNING
Do not let air out of warm tires to
adjust pressure. Doing so will result
in low tire pressure.
Incorrect tire pressures detract from con-
trollability and ride comfort, and they
cause the tires to wear abnormally.
.
Correct tire pressure (tread worn
evenly)
Roadholding is good, and steering is
responsive. Rolling resistance is low, so
fuel consumption is also lower.
.
Under inflated tire (tread worn on
shoulders)
Rolling resistance is high, so fuel con-
sumption is also higher.
Maintenance and service/Tires and wheels
–
CONTINUED
–
11-33