See also:

Maximum allowable speeds
The following tables show the maximum speeds that are possible with each different gear. Never exceed the speed limit listed in the following table for each gear position except for brief acceleratio ...

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 ...

To increase the speed (by accelerator pedal)
1. Depress the accelerator pedal to accelerate the vehicle to the desired speed. 2. Push the “SET/COAST” button once. Now the desired speed is set and the vehicle will keep running at that spe ...