I thought Opie oils have a 20 per cent sale on bud, so it's probably cheaper / same price to buy one of the "better" oils. I use Fuchs Titan Race Pro S.
http://www.cliosport.net/forum/showthread.php?758626-20-Off-End-Of-Season-Sale-Code-OPIESALE
Having said that, when my old engine ate oil, I used to sling Shell helix in and it was fine.
As did I, better than the other non fully synthetic oils out thereI use this stuff in my car and my friend does in his Impreza.