Recommended shifting speeds
Subaru Impreza / Subaru Impreza Owners Manual / Starting and operating / Manual transmission – 6 speeds (STI) / Shifting speeds / Recommended shifting speeds

The best compromise between fuel economy and vehicle performance during normal driving is ensured by shifting up at the speeds listed in the following table.
See also:
Warning and indicator lights
...
Front passenger’s SRS frontal airbag
The front passenger’s SRS frontal airbag uses a dual stage inflator. The inflator
operates in different ways depending on the severity of impact.
The total load on the seat is monitored by the pass ...
Power switch and volume control
The dial is used for both power (ON/OFF) and volume control. The radio is turned
ON and OFF by pressing the dial, and the volume is controlled by turning the dial. ...
