Exhaust color

Should I be worry about the black color at the end of my exhaust?

 

It's fine as a little won't hurt. I get a little on mine and just wash it off on its weekly wash. It's running a little on the rich side

 

Black deposits in the exhaust system are caused by carbon from unburned fuel. A very small amount of this is normal, as no system is 100% efficient. Heavy soot however indicates a rich condition or misfiring. This could also cause premature failure of your catalytic converter and O2 sensors.

Black exhaust smoke can appear when the vehicle is burning too much fuel. This could be caused by a clogged air filter, malfunctioning fuel injection system, a blocked manifold, or a variety of other issues

 

Its from condensation from cold metal and hot exhaust mixed with normal carbon depositis.

 

Yes. Totally normal and fine. Exactly as @eurowner says.

 

My exhaust tip will be like that if i use premium grade fuel. Truck runs worse to. With 87 its a light orange/gray.

 

Hydrocarbons

 

So it can kill your cats sooner.

 

I seriously doubt it. I run a JLT catch can and it has reduced mine which isn't too bad. I run 93 octagon, also a KDMAX Pro tune so that has been the most help.

 

The 3.5 runs a little rich when engine is cold