anyone else getting black exhaust on their bumper

[05king]

so our 14' rspec has about 1200 miles on it now and the chrome trim around the bumper is almost totally black and the bumper is now turning black.. Seems like the car is running real rich. Anyone else seen that?

 

[craigt]

Re: anyone else getting black exhaust on there bumper

Has been brought up many times before. Has to do with the GDI engine. Normal for both 3.8 and 5.0 GDI engines.

It comes off pretty easily as long as you keep up with it.

 

[dareckibmw]

Re: anyone else getting black exhaust on there bumper

"Simple Green" will wipe it off in seconds.

 

[blkgenRspec]

Re: anyone else getting black exhaust on there bumper

if you dont already try using premium gas. I used to go back n fourth from 87 to 93 and noticed after using 93 all the time. I didnt get very much blk smut on the tips.. But that could also be due to the motor being broken in.

 

[FastDEW1]

Re: anyone else getting black exhaust on there bumper

I've used both fuels. After 13000 miles of driving I can tell you that fuel doesn't matter. It's just a GDI engine thing. It washes off. And it's not only Hyundai. It's GDI systems.

 

[PMCErnie]

The problem is that the exhaust pipes exit in the middle of the painted rear bumper. Same problem with similar cars like the dual exhaust Fusion.

 

[05king]

Weird thing is our Cadillac is direct injection and never does this. So I wouldn't say its just a direct injection problem. I am going to look at the difference in tips between the Cad and the Genny. It is good to know that I am not the only one seeing this though.

 

[Buford T Justice]

I used steel wool the other day to get a bunch of the buildup off. I'm not getting it on my bumper like you are though, just the chrome tips.
I also floor it every time I get on the interstate (at least twice a day) so I don't really get much for particle buildup in my exhaust.
Is your car white?

 

[Bill K]

I use a nylon scrubber pad to clean the exhaust tips. Don't use it on paint, though.

 

[Top Gear]

Just clean it off. It's normal. Mine is not GDi and does it around the exhaust tips.

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[05king]

Yes our car is white. Ok it sounds normal so i will just keep it clean. Thanks for the help