Volvo S80 Owner's Manual page 149

Important!
Always use oil of the prescribed grade, see
engine compartment decal.
Check the oil level frequently and change
the oil regularly.
The engine will be damaged if a lower than
specified grade of oil is used or if the car is
driven with the oil level too low.
Using oil of a higher grade is permitted. Volvo
recommends using an oil of a higher grade than
that specified on the decal for adverse driving
conditions. See page 161.
148
Check the oil level more frequently for long
journeys:
·
towing a caravan or trailer
·
in mountainous regions
·
at high speeds
·
in temperatures colder than -30 °C or hotter
than +40 °C
· shorter driving distances (shorter than
10 km) at low temperatures (under 5 °C).
This may result in abnormally high oil
temperature or oil consumption.
2200315d
Change the oil and oil filter in accordance with
the intervals specified in the Service and
Warranty Booklet. When filling oil to top up a
low oil level, the oil being filled must be of the
same grade and viscosity as the oil in the
engine.
Checking the oil level in a new car is especially
important before the first scheduled oil change.
The Service and Warranty Booklet specifies the
odometer readings for oil changes.
Volvo recommends checking the oil level every
2500 km. The most accurate measurements are
made on a cold engine before starting. The
measurement will be inaccurate if taken
immediately after the engine is switched off.
The dipstick will indicate that the level is too
low because the oil has not had time to flow
down into the oil sump.