Opel Antara Owner's Manual page 194

194 Self-help, vehicle care
Top up if the engine oil level has dropped
to the " add oil" low er ma rk (or MIN mark).
The oil level must not go above the upper
(or MAX) mark on the dipstick. This would
lea d, for example, to increa sed oil
consump tion, excessive formation of
carbon residue and a p ossible risk of
dam age to the cataly tic conv erter or the
engine.
When replenishing , attem pt to use the
sam e typ e of eng ine oil as used at the last
oil cha nge.
C apacities - see pa ge 229.
A stabilization of the engine oil
consum ption w ill not tak e p la ce until the
vehicle has been driv en several thousand
kilometres/miles. Only then can the actual
degree of oil consumption be established.
If oil consumption exc eeds more than
0.6 litres ev ery 1000 km (600 miles) after
this running-in period, consult a workshop.