Harvisestoun brewery's original master brewer Ken Brooker spent much of his early life crafting wooden design prototypes for the Ford motor company. This black, viscous beer reminded ken of thick, gloopy car engine oil, so he named it in honour of his second love, the internal combustion engine.

Wickedly, wickedly smooth, this strong dark beer with its chocolatey flavour leaves a bittersweet aftertaste to savour