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.

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To help prevent corrosion
Wash the vehicle regularly to prevent corrosion of the body and suspension components.
Also, wash the vehicle promptly after driving on any of the following surfaces.
● roads that have been s ...
MMT
Some gasoline contains an octane-enhancing additive called MMT (Methylcyclopentadienyl Manganese Tricarbonyl). If you use such fuels, your emission control system performance may deteriorate and the C ...
