Maybe I'm late to the party, but I didn't see any specific threads about this. 0w30 formerly known as the good ol German castrol we all love is no longer German. Still wears the "European formula" logo but it is now produced in Belgium. The new* German Castrol is now 0w40
API SN VS the Old 0w30
API SL Pretty interesting! I went to my local pep boys and sure enough, i was looking at 2 bottles 0w40 and 0w30 one made in Belgium, one made in Germany. I did a little research on BITOG and it is a new formulation with pretty amazing UOA's. It shears down to a heavy 30w at OT. I know allot of us do the GTR oil change with mobil 1 0w40, and now we have another Geat option for a 0w oil
anyways just thought id pass the news, whether or not you knew...fyi