Exhaust more noticable that "usual"...

Log Out | Topics | Search Moderators | Register | Edit Profile

Author Message   Chris Nuzum (Cnuzum) Member Username: Cnuzum Post Number: 107 Registered: 02-2003 Posted on Friday, February 27, 2004 - 08:12 pm:    I've noticed my exhaust more than usual while stopped at stop lights lately, by that I mean I can see darker exhaust. On my latest oil change I did switch over to synthetic Chevron oil. Is there anything I can check or should check, like plugs, trying higher octane gas(currently use 89 octane), exhaust gaskets? Thanks in advance. oh yeah, 97 Disco, 110,000 miles.   Bob Bezubiak (Bbezubiak) New Member Username: Bbezubiak Post Number: 12 Registered: 02-2003 Posted on Saturday, February 28, 2004 - 02:26 am:    probably your gasket at the header.   Joey (Joey4420) Senior Member Username: Joey4420 Post Number: 583 Registered: 04-2003 Posted on Saturday, February 28, 2004 - 09:07 am:    When was your last O2 sensor change? When they go bad they will make the engine run rich, causing your exhaust to be darker.