Well, ASSuming that the heads are the same, then yes. The odds of being at high revs and high gees are almost zero in the MPV, but there's no harm in 6 qts or a little more - again, assuming it really is exactly identical, which is probably is.

-Philip Maynard '95 Contour [71 STS | Track Whore] '97 Miata [71 ES | Boulevard Pimp] 2006 autocross results