This has always been a hotly debated question.
There are 2 ways about it.
If the engine idling speed is correct and not too high, there would be minimal wear on the clutches if you leave the trans in gear for a short period of time.
Shifting out of gears would cause more damage at the point of clutches engagement when shifting in than leaving it in drive.
If you wish to shift out, leaving in N with handbrakes applied would be more sensible as you need not move across the reverse range.
If the waiting period is prolonged, then keeping the trans in P or N would be a better choice.
Wednesday, February 3rd, 2010 AT 1:06 PM