I've been hopping around the GM forums (Acadia and Traverse) looking for a reason why my exhaust tips on our Traverse have an unusual amount of carbon build up on the inside of the chrome tips. There are many differnet reasons being entertained on the other forums. I would like for you experts ( I mean that literally) a chance to chime in on what might be happening.
These direct injection engines are new animals. I have never had carbon build up on my exhaust before. I have to wipe them out about every 3 days or so. Is this a fuel issue or a possible oil being burnt issue? Some say fuel, some say the oil is burning off and leaving the soot. Any thoughts? The engine runs great and fuel mileage is a very good 19+ around town 26+ highway.
Will a UOA provide me with this infromation?
These direct injection engines are new animals. I have never had carbon build up on my exhaust before. I have to wipe them out about every 3 days or so. Is this a fuel issue or a possible oil being burnt issue? Some say fuel, some say the oil is burning off and leaving the soot. Any thoughts? The engine runs great and fuel mileage is a very good 19+ around town 26+ highway.
Will a UOA provide me with this infromation?
Last edited: