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:
Revised 2.5-liter Boxer Engine with New 6-Speed Manual or CVT
The 2010 Subaru Legacy 2.5i models are powered by a revised 2.5-liter
4-cylinder Boxer engine, teamed for the first time to a new 6-speed manual
transmission or the available new Lineartronic™ CVT ...
Recommended spark plugs
For the recommended spark plugs, refer to “Electrical system”. ...
Fuel octane rating
This octane rating is the average of the Research Octane and Motor Octane numbers
and is commonly referred to as the Anti Knock Index (AKI). Using a gasoline with
a lower octane rating can cause p ...
