Today I washed my car since the sun was down the car was fairly cool as the wind was blowing. I was going to wax it after when I saw some black stuff on the right side of the car. Looked like tar. It's basically small lines and dots all across the right side of the car from the base up to about 6" below the door windows. I can take it off with my finger nails if it's dried up and with a dry rag but the dry rag simply smears it. I decided since I wasn't going to spend all day using my finger nails the best thing to do would be to use a dry rag and than a wet one to take care of the smearing. That doesn't work. The wet rag cleans it fairly good but there is still residue left on the paint and if I applied anymore pressure I was going to damage the paint.
I than remembered that about a week ago I was driving on the freeway and an 18 wheeler had a blow out on one of the back tires. I remember driving and hearing it about as far back as a mile. I had to pull up behind it so I can take an exit. The truck had the blow out on the right side, same place my car has all the tar. I'm guessing that some of the tire was melting as it was dragged along the asphalt I could see sparks and some of it ended up on my paint.
How can I take stuff off? Simple car wash soap does not work. I don't have anything else. Would compound work? I have some compound but I don't think it would work. It's basically cream that you put on a rag and apply to the paint. I used it before but it does absolutely nothing.