A lot of "soot" black buildup in and around the outside edges of my HDMI exhaust pipes

[johnnyquick]

2020 6.2 does anyone else have and or get a lot of carbon/soot  at the exit of the exhaust tips?

Seems like it is running rich or something

mine look like crap and are washed at least once a week with drive through spray washer.

 

Edited August 9, 2024 by johnnyquick

[Grumpy Bear]

[OnTheReel]

Mine did that too. Easy-Off oven cleaner worked wonders. 

[johnnyquick]

42 minutes ago, OnTheReel said:

Mine did that too. Easy-Off oven cleaner worked wonders. 

I just thought it seemed weird to be soooo black on a gasoline engine.

 

[CamGTP]

It's normal on just about any gas vehicle. Start looking at other cars/trucks on the road with chrome tips and you'll notice soot trails all over them too.

[OnTheReel]

More so on GDI motors. They try to mitigate this by having the tips basically disconnected from the tailpipes but it is what it is. Could be worse, my wife’s car has completely fake tips.

[Grumpy Bear]

Our Honda's non-GDI tips are very clean. The GDI Terrain is a soot storm. The GDI pickup was soot filled until after 20K miles running on E-85. It's now as clean as the Honda.  Personally, I THINK (OPINION) that it is the richer 'Command AFR" ratios used in GDI motors. But what do I know....

[AJMBLAZER]

Good cleaning product and one of those detailer's scrubby balls will take care of it.

[ebarden83]

Direct injection engines have this common issue. Just coked oil on valves and rings and occassional heavy accel will leave this deposit. Also what gets trapped in the exhaust system.