What kind of engine oil should i use for my R reg vauxhall vectra?

i have got R-reg vauxhall vectra. What kind of engine oil should i use? synthetic or semi-synthetic? mineral?|||(1) stick the factory recommended viscosity.





(2) unless you have a turbo engine you don't NEED synthetic. Just make sure you keep up with good oil change maintenance SCHEDULE. I have Audi A4 (turbo) is I NEED the synthetic oil.





(3) semi-synthetic (blend) is a bunk. The reason synthetic oil is better is that they are more pure. But you mix something pure with something NOT pure, you end up with something NOT pure (not half pure).





http://www.nordicgroup.us/oil.htm





Good Luck..|||synthetic