Originally posted by Fast4DrSVT:
I do however have a faint soot that builds up in a few days on the tailpipes.
Thats just raw carbon from the normal combustion of the fuel. My car does the same thing. Right now the inside of my tailpipes are covered in a heavy film of soot from the long trip to and from Michigan. I checked my oil regularly during the trip and the oil is on the same spot on the dipstick as it was when before I drove there and back.
