lasercowboy;104205 wroteWhiteblocks burn oil. It's nothing to worry about - well known phenomenon. Just feed it a pint every few thousand kms and you'll be fine :)
I've got 20+ white blocks on my property at the moment
None burn any oil, Some leak oil though
OIl changes every 5k KM anyways for long life, unless on the B6304 which you can do 7.5k changes on
(if using HPR10)