What oil to use in 2005 vauxhall vectra diesel?

For a 2005 Vauxhall Vectra diesel, it's recommended to use a high-quality synthetic or semi-synthetic engine oil that meets the specifications of ACEA C3 or API SM/CF. A common choice is 5W-30 viscosity oil, which provides good protection and performance under various driving conditions. Always check the owner's manual for specific recommendations and oil change intervals to ensure optimal engine health.