Oil in pipelines is hot, weather its crude or not, is not an accurate statement. In all the years I spent in the patch, I never once worked on a line that hot oil flowed in for any distance. But oil is different at every field around the world so my experience is quite limited so yes some is heated, to be move down lines. I'm not sure where, but I'm sure it it. Nearly all the wells I worked on heated it in
treaters I worked on those da^&%m things. Oils used in asphalt or road repairs is a
byproduct of there refining and not good for much anything else so I'd say road is a good place for it.. Hope that helps