I'm curious if Castrol makes a 5w40 synthetic in Europe? My father's 2004 Volvo lists 5w40 as one of the recommended viscosities for hotter weather (5w30 is only good to 30c/86F) and the manual also says "Volvo Cars recommends Castrol" too. So I'm curious if there is a 5w40 Castrol synthetic over there, which might mean the Volvo dealer might offer it for their oil changes. My dad has decided to use the Volvo dealer to change his oil, and instead of bringing them Mobil 1 everytime like he's done with other cars he has owned, this time he figures he'll just use whatever synthetic they offer. I'm just worried they might only offer 5w30 or 10w30 Syntec though (it would be nice if they sold the German 0w30 Syntec, which would be a nice fit in his XC70, which is a low pressure turbo 2.5L 5 cylinder engine) If Castrol does make a 5w40, what are the specs on it like?