Oh thats a crafty move!
sonic03inSC I did alot of research on oils and 0w-40 Castrol Edge (Euro formula) came up over Mobil 1.
I'm in FL so my engine oil is probably always warm
but when I made the switch months ago I gained an extra 300miles before needing to top up a quart
As much as I despise Walmart they always have deals on Castrol :-)