Yeah that's one of their old/er labels, around the same time Nulon were also changing theirs (which they did again later on) which had me wondering if there were some funny business going on with Low SAPS spec's at the time. I believe it's a suitable replacement where C2 is required so makes sense to put it on the bottle.
Here's one my Father bought at Ford whilst trying to look for Castrol Pro A5 for his ecoboost:
