Honda 2006 Civic Coupe Online Reference Owner's Manual page 167

Service Station Procedures
DIPSTICK
Si
184
DX, Canadian DX-G, LX, EX
UPPER MARK
LOWER MARK
4. Remove the dipstick again, and
check the level. It should be
between the upper and lower
marks.
Si
UPPER MARK
LOWER MARK
If it is near or below the lower mark,
see Adding Engine Oil on page 220 .