HELP!!!! Black liquid from Exhaust

[darkangel23]

I Have a 1981 Nissan 280zx Turbo and I just noticed that there is a black liquid that is coming from the exhaust. My cars RPM also goes up and down just wondering if you guys have any clues what is going on.

[Tombarace14]

Could be oil or could be too rich. Is it just oozeing out or covering to back of your car? You really should list some more details to narrow the problem down.

[darkangel23]

When I put my finger up inside of the exhaust pipe there is a black liquid in there. When I rev the engine it comes out on to the ground not very much though just little drops.

[BRAAP]

I’m assuming this is what you are describing.

 

It is VERY common and normal for black liquid to drip out of the tail pipe as the exhaust system warms up when you fire up the engine in the morning, more so in humid climates. The major byproduct of combustion is H2O, (you have probably noticed the steam from other cars tail pipes during cold weather), and because the inside of the exhaust system is coated with soot, that water vapor condenses like in the muffler, and carries the soot with it and depending on many factors like if the car is parked on a hill, etc, this soot laden water will drip out of the exhaust tail pipe, or if you stab the throttle, it will spit out. Sometimes it will spit out little black goobers on to the garage door, (or garage floor some distance away from the tail pipe), if the car is parked near the garage door and you rev it up a little as the car warms up. This happens on brand new cars and old cars alike.

[cygnusx1]

My garage door and the floor behind my Z's tailpipe looks like someone spray painted it black. I get the same thing. Just make sure it's running well, and you are getting the right MPG.