Drew, when you work in asphalt, diesel fuel is your best friend. When I started 38 years ago, we had some liquid called Triple T., it had a $50.oo name but we just called it TTT or triple T. It was dry cleaning solvent and worked really good. The goobermint banned it. So then we got Trim S. Again, no idea what the $50.oo words were for it. Did know that if you were real smart you didn't smoke anywhere near it. Extremely flammable. That got outlawed too. So we got this stuff made by ZEP, don't know what the real name of it was except that it smelled like oranges. It works, just not as good as the TTT. If you let it freeze, then it would gel up and not go through your sprayer.
Although we are not 'supposed' to use diesel fuel or gasoline for cleaning asphalt, what happens in the field stays in the field.