Unknown Substance around tire
Can anyone tell me what this goop is around my tires? When i hand wash my car I don't get it but when I take it to the automatic carwash I get it every time. It's a dark grey thick goop. The first time I didn't notice it and it slung the goop all up inside the wheel well and down the side of the car. Now I use a rag to wipe it from inside the groove where the tire and wheel meet.