Originally Posted By: Ducked
Originally Posted By: Oilmanjean
Another archaic term for asphalt/bitumen is "pitch".
The term "pitch" mostly gets used where I come from for the heavy fraction from the destructive distillation of wood, as in "Pitch Pine", a N. American tree species.
Maybe it can also be a synonym for asphalt/bitumen (After all, in the US they think petrol is a gas, so anything goes) but that's more often called "tar", when it isn't being called asphalt/bitumen.
"Tar" can also be wood-derived, as in "Stockholm Tar", and then it is a bit thinner than wood-derived pitch.
"Waste oil/sump oil/used oil" is called "waste oil/sump oil/used oil", and is different.
We call it tar here. But if you took waste oil and distilled the lighter elements out, what do you have? Not saying they use it for that.