WD-40 to Remove Black Streaks Off Cars and RV

Regular washing and waxing of recreational vehicle will keep it from acquiring all those nasty black streak and other unsightly builds up on the sides and roof. But if for some reason you already have those black streaks, you might want to get a hold of your trust WD-40 and try to remove those black streaks with it. Just make sure to wash your car or rv with your car wash soap and water after you used the WD-40 on the stain.