To find the exact engine oil capacity for your Opel Corsa 2010, I recommend the following:
1. Check your owner's manual: This is the most reliable source for information about your car. It will list the exact oil capacity for your specific engine.
2. Consult an Opel dealer or mechanic: They will have access to service information for your model year and can provide the correct oil capacity.
3. Look for a sticker under the hood: Some vehicles have a sticker located under the hood that lists the oil capacity.
Remember, using the correct amount of oil is crucial for your engine's health and performance.