Skoda Superb 2004 Owner's Manual page 206

Note
The location of the inspection points in the engine compartment of petrol
and diesel engines is practically identical.
Engine oil
Engine oil specifications
The grade of engine oil should be selected in accordance
with precise specifications.
The engine of your vehicle has been factory-filled with a high-grade oil
which you can use throughout the year - except in extreme climatic
regions.
You can mix various oils together with each other when refilling with oil.
This does not, however, apply for models with flexible service intervals
(QG1).
Engine oils are, of course, undergoing continuous further development.
Thus the information stated in this Owner's Manual is only correct at the
time of publication.
Škoda dealers are constantly informed by Škoda Auto about current
changes. This why you should always have engine oil changed by your
Škoda dealer.
Using the system Safety
Engine oil specifications for vehicles with fixed service intervals
(QG2)
a)
b)
Engine oil specifications for models with flexible service intervals
(QG1).
a)
For further information - see Service Schedule.
Only the above-mentioned oils may be used on vehicles with flexible
service intervals (QG1). We recommend always refilling with oil of the
same specification since this will maintain the properties of the oil. In
exceptional cases, you must top up only once engine oil complying with
Specification VW 502 00 (only for petrol engines) or Specification VW 505
01 (only for diesel engines) to maximum 0.5 litres. You must not use other
engine oils - risk of engine damage!
Driving Tips General Maintenance
Denomination Petrol engine
Multigrade high- VW 500 00
lubricity oils VW 502 00
VW 501 01
Multigrade oils
b)
ACEA A2 or A3
This does not apply for PD engines (a unit injection engine). Further information -
see Technical Data.
Only to be used in exceptional cases if the oils specified above are not available.
Petrol engines
Diesel engines
This does not apply for PD engines (a unit injection engine). Further information -
see Technical Data.
Caution
Breakdown assistance
Inspecting and Replenishing
Diesel engine
VW 505 01
a)
VW 505 00
b) b)
ACEA B3 or B4
b)
Specification
VW 503 00
VW 506 01
a)
VW 506 00
Technical Data
205