Dealer changed the BB oil at last service using Morris Lodexol XFS 80w/140 a fully synthetic LSD oil. I specifically asked about level & they fill to the plug above the drain not to the orange breather. They said filling to breather can cause frothing. Since the BB seems to be custom made for MMC why would they fit a plug above the drain if it was not going to be used? When I flushed my BB I used Lodexol filling to the plug.
