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:
Electrical system
AT: Automatic transmission
MT: Manual transmission ...
System maintenance
Changing the batteries
• Do not let dust, oil or water get on or in the remote engine start transmitter when replacing the battery.
• Be careful not to damage the printed circuit board in the re ...
California fuel
If your vehicle was certified to California Emission Standards as indicated on
the underhood tune-up label, it is designed to optimize engine and emission control
system performance with gasoline ...
