What oil do you put in a vauxhall astra 1.4 03 plate?

For a 2003 Vauxhall Astra 1.4, it's recommended to use a high-quality engine oil that meets the specifications of ACEA A3/B3 or A3/B4 and has a viscosity rating of 10W-40 or 5W-30. Always check the owner's manual for specific requirements and consider using synthetic oil for better performance and engine protection. Regular oil changes are important for maintaining engine health.