there is a new magnatec out that is fully synthetic (10W40) to tell if if you are getting that, on the label the old semi synth magnatec will have A3/B3 the new version has A3/B4. This is in retail now.
If you want to stay semi synth then look for GTX with the same A3/B4 suffix (A3/B3 GTX is a mineral oil)