Honda 2007 Civic Hatchback Owner's Manual page 324

Starting the Engine (Diesel models)
The engine must not be run above
fast idle speed until the oil
pressure warning indicator goes
off. This will ensure that the
engine and turbocharger bearings
are properly lubricated before
being run at normal driving speeds.
Ignition Switching Off
To avoid the possibility of damaging
the turbocharger bearings through
inadequate lubrication, ALWAYS
allow the engine to idle for 10
seconds before turning off the
engine.
321
Driving