That is normal for all GDI engines. My genesis G90 was that way also.Hi. I drove my car about 7500 miles and 4 months now. I just noticed that there is relatively noticeable black carbon build up on tailpipe. It is only 4 months old. Is it normal to have black carbon build up on tailpipe?
I had a 2012 Hyundai Genesis that was real bad but very little from the palisade.That is normal for all GDI engines. My genesis G90 was that way also.
Some manufacturers have changed the exhaust systems, making the outlets only for looks, bypassing the outlets
entirely My kia optima and cadenza were really bad about that. If you wipe them out when car is washed it helps