Does Volvo recommend the use of Synthetic Oil in their cars, or do they just use regular 'Dino' oil? <BR>I use Amsoil synth in my Grand Cherokee & not just in the crank case. I use their synthetic ATF in the tranny as well as in the transfer case and I even use their axle lube in both axles. Lubricates much better in all temp extremes, resulting in less friction. I'm curious as to what Volvo recomends...<BR>Also, what's the oil change interval recommended by Volvo? I know the maintenance schedule hasn't yet been released for the XC90 but what is it for the S60 or S80?<BR>Thanks.<BR> <IMG SRC="http://www.swedespeed.com/ubb/smile.gif"><BR><P>