Hi all,

recently I picked up an '05 GTP with 37k miles on the clock. I like the car a lot, but am concerned about some black soot that was present on the exhaust tips when I bought it. The car has remote start, so i was thinking that maybe it was from the car idling a lot in the winter. Is there anything I can do (short of using a scanner) to find out the cause?

Thanks in advance,
hklvette