Assembly Oil Medium

Made from the highest quality oils, this is formulated to be used on the moving parts to your steam engine (crank, pulleys, bearings, bushings)
The oil grade is regarded as the Medium in grade for your steam engines, its not too thick and not too thin.
This is similar to 3-in-1 oil and used on all medium duty parts that require lubrication. 
It comes in a 30ml bottle with a small nozzle on the tip to allow you to oil the right place.