Does any body have this problem...? I always seem to get lots of soot on my rear quarter panel, bumper and mud flap. Its not like I lug my truck to get a lot of soot build up in my exhaust either. I even once tried cleaning out my tail pipe as far as in as i could and still got the soot. It almost looks as if this comes from water getting on the tail pipe but i get it on a good dry day as well. Does the truck have this much exhaust moisture....? Can any one help...?