Was Mobil 1... couldn't say if it used more or less oil with that. Never really got through much, apart from a leak a while back around the temp sensor.
One thought with the rattle is perhaps the Mobil 1 going in was a bit 'thin' for the age of the car: CCS have always done the change (every year since 1995), but I didn't check what grade of Mobile 1 they used. Otherwise it could be the Motul is better at high temp (get's hot and sloshes around a lot at Taupo -little oil fire when the turbo feed leaked showed that

)
Anyway, I don't drive that much so this is not very scientific. Will keep and eye on the Motul use and tappet noise when it's hot.