Ford Focus 2004 Owner's Manual page 207

Oil pressure warning light
If the Oil pressure warning light
stays on after starting or illuminates
during a journey, stop immediately,
switch off the engine and check the
engine oil level.
Top up straight away if the level is
low.
Do not resume the journey
if the oil level is correct,
there may be a problem with the
engine lubrication system and
engine damage may occur. Have
the engine checked by an expert.
Ford authorized repairers are
recommended.
Engine oil filler cap
The oil filler cap is a twist-on fit
design. To open, turn the cap
anti-clockwise. Do not open the cap
while the engine is running.
Do not use oil additives or
other engine treatments.
They are unnecessary and could,
under certain conditions, lead to
engine damage which is not
covered by Ford Warranty.
To close, turn the cap clockwise
until a strong resistance is felt.
Make sure the cap is
twisted on tightly.
Undertightening could allow oil to
leak out.
Maintenance
199