Seen it but never used it.
There's a thread on nasioc about the pros and cons of royal purple vs others, I know that they tend to stay away from mobil fully synth as people reckon it causes spun bearings, I don't think they get as much choice as us over here. Mainly US brands and castrol.
Plenty of good stuff availbe here, gulf, fuchs, millers to name a few and slightly cheaper with opie discount. But why not take a punt and aee how you get on