What oil do you put in a astra 1800 2009 plate?

For a 2009 Astra with an 1800cc engine, it's recommended to use a high-quality engine oil that meets the specifications of SAE 5W-30 or 10W-40, depending on your climate conditions. Look for oil that complies with the ACEA A3/B4 or API SN standards. Always consult the owner's manual for specific recommendations and to ensure you're using the right oil for your vehicle's needs.