10W-40....
Yes its SL rated so its fine... and yes it will do fine, just keep a eye on consumption as 10w-40 shears easier than say 10w-30.., has more volume index improver's/pour point depressants..
As for oil wieght..... 10w-30 is a 30 weight at operating temp... acts like a 10 weight in the cold temps... the bigger the gap between these two numbers mean theres alot more likeliness it'll shear (go down a oil grade) and sludge.. this is what synthetics really don't have to deal with... Which is why I recommended either just straight 30 weight, or 15w-40 CF/SF rated oil... (compression fired and spark fired suited for diesel engines or gas)