Which type of oil does an astra 1.4 16 valve 09 reg need?

The Astra 1.4 16 valve from 2009 typically requires a synthetic or semi-synthetic engine oil with a viscosity rating of 5W-30. Always check the owner's manual for the specific oil specifications and requirements, as they can vary based on engine type and regional regulations. It's also important to ensure that the oil meets the relevant industry standards, such as ACEA or API ratings.