Recommended shifting speeds
Subaru Impreza / Subaru Impreza Owners Manual / Starting and operating / Manual transmission – 5 speeds (except 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:
Summer tires
The factory-installed tires on your new 2.5 L turbo models are summer tires.
Summer tires are high-speed capability tires best suited for highway driving under
dry conditions.
Summer tires are in ...
Turbo models
...
Corrosion protection
Refer to “Corrosion protection” F10-4. ...
