Quote Originally Posted by xcwizit View Post
magnatec = good! was using Mobil Synth S before that, just as good but was thinner oil.
Both Magnatec and Synth S are 10w-40.

Personally, I'd use Synth S and change every 5000km or use Shell Helix Plus 10w-40 and change every 7000km. If you are burning oil currently with Magnatec, then you can consider Shell Helix Plus 15w-50 if you have already replaced your PCV valve.