Tachometer
The tachometer shows the engine speed in thousands of revolutions per minute.

Do not operate the engine with the pointer of the tachometer in the red zone. This may cause severe damage to the engine.
NOTE
For non-turbo models, to protect the engine while the select lever is in the “P” or “N” position (for AT models) or the shift lever is in the neutral position (for MT models), the engine is controlled so that the engine speed may not become too high even if the accelerator pedal is depressed hard.
See also:
Windshield washer fluid
If you spray washer fluid on the windshield but the supply of washer fluid appears to diminish, check the level of washer fluid in the tank.
Washer fluid level gauge
Remove the washer tank fill ...
Tire chains
Tire chains cannot be used on your Impreza, WRX and STI because of the lack of clearance between the tires and vehicle body. ...
P Metric
With the P-Metric system, Section
Width is measured in millimeters.
To convert millimeters into inches,
divide by 25.4. The Aspect Ratio
(Section Height divided by Section
Width) helps provid ...
