MidnightCayman

Started the car yesterday and noticed this dripping from the mufflers on both sides.

Wonder if it is a reason for concern. Greatly appreciated if anyone can chime in.

Jaws1

No need for concern. Just condensation in the exhaust system, a byproduct of combustion. Direct injection engines typically generate a lot of soot, so the water is washing out that soot.

Robocop305

I get that every time I start my car cold. Nothing to worry about.

dasams

Not sure there's any basis for this

Mumbles

Maybe your doing a lot of short trips thus not enabling the condensation build up to burn off

okbarnett

I think some of it is all the oil that this engine uses

fskof

Normal for all direct injection engines. Best thing you can do is take it for a good 30 min drive at highway speeds to heat everything up.

SteveFromMN

On startup the 997.2 DFI runs rich to heat up the Cats. This causes a lot of soot in the exhaust. Normal to meet emissions I guess.

Jaws1

^ Yes, there is as given above. I've owned 4 DI vehicles (Porsche, 2 x Audi, and Ford), and all of them have had sooty tailpipes. The only non-DI car which came close in the soot department was an AP1 Honda S2000 which was known to run very rich.

hot nikon

My car also experienced "spotting", when new seemed to happen more often, but not with the size of the "discharge" you are seeing. Mine were like little specks, in comparison.

My car has 22k miles, no spots on the garage floor. No smoke, typical oil consumption.


Good luck.


OP, you really could do something to that garage floor...

Fahrer

The soot is not from oil. It is the result of unburned fuel hitting the piston directly and being carbonized. This is an issue with direct injected engines. The new trend is to use both port and direct injection on the same engine to get the benefits of both systems.

kosmo

yes.

DFI has its pros and cons.

extanker

chill dudes...engines have been doing this for decades...but dont stop with some of these expert theories ...they are funny

wheeler

Time for an "Italian Tune-up"!

GSIRM3

Mine does the same thing. On cold days, if I don't let mine warm up a while before driving it to let the exhaust heat up to dry up the condensation, I get some of the droplets on the rear bumper which does not look too good on my white GTS. As others have stated, it is one of the negatives of a DFI engine.