Volvo 2006 S60 - Manual (Page 67)

5-speed manual transmission
Depress the clutch pedal completely when changing gears*.
Remove your foot from the clutch pedal while driving. The shift pattern should be followed.
Overdrive (5th gear) should be used as often as possible to help improve fuel economy.
* Clutch interlock
The clutch must be fully depressed before you can start your car. If the clutch is not depressed, it will not be possible
to start the engine.
6-speed manual transmission
(option on certain models)
Fifth and sixth gears should be used as often as possible to help improve fuel economy.
WARNING!
An extra mat on the driver's floor can cause the accelerator pedal and/or the clutch pedal to catch. Check that the
movement of these pedals is not impeded. Not more than one protective floor covering may be used at one time.