The area I live in has road maintenance workers use a large amount of loose tar to fill pots holes, which results in tons of tar getting on our cars. Our '16 Outback, which is silver, gets decimated with this stuff. I have been using a tar and bug remover, but it is still very difficult to remove the tar. Is there any product that works well to get rid of this tar? It took forever the last time I did a "quick" wash to get the car clean.