See also:

Additives
Do not use any additives in the engine oil. This could damage the engine. ...

Premium-grade unleaded gasoline
To ensure the longevity and full performance of the engine, only premiumgrade unleaded gasoline must be used. If no premium-grade unleaded gasoline is available and regular unleaded gasoline mu ...

Inserting and removing DVDs
Proceed as described in the "Inserting and ejecting CDs and DVDs" section. ...