I've got an old B&W Type 2X1 which only really use for topping up tyres etc, had it a good few years and still going strong but it's recently occurred to me that I've never changed the oil in it. Anyone know what grade of oil this would take? Also I assume you just fill it until the oil is level with the fill hole? Lastly there's two screws on the bottom, one is presumably the drain plug but what's the other likely to be? Cheers
