I personally wouldn't, it will mask the grassy. flinty taste of the
Sauvignon blanc -- which is often matured "sur lie" in the Loire valley ( cf
Pouilly Fumée).
I suppose it depends on the quality of the kit.
I always oak my chardonnays ( oaking and aging gives chardonnay that
delightful "buttery" taste) but never my Sauvignon Blanc or Muscadet --
two of my favourite whites -- I like the sharp dry acidness of both wines
and oaking would smooth and take the edge of sharpness away.
All IMHO!

--
Trevor A Panther
In South Yorkshire, England
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"Rob M" > wrote in message
om...
> I just started a kit wine from Cosco. It is a Sauvignon Blanc and it
> came with oak. I did not put it in. Is it common to use oak in this
> style of wine?