I had the Old Engine Oil on Sunday evening in the Bierhaus. Pretty nice, recomends it be served chilled which is a bit unusual for a scottish dark beer I would have thought. I concur with the comments about only in 330 ml btls. Paying the same price as a for a premium 500 ml bottle. I belieeve from Dave it is only brewed once or twice a year so it is hard for suppliers to get their hands on it. Well done Dave for getting it. I very much like the Bitter and Twisted and Scheballion from this brewery - maybe my hopes for this beer were a little inflated as I relaly like the last two mentioned beers.