white smoke only on first day's startup and not everyday

[David Nerenberg]

Got a 2006 987 Boxster two weeks ago and this past weekend was my first longer drive (275 miles). The day after (and after a fill up), the first startup of the day was a puff of white smoke from the exhaust for about 15 seconds. This didn't look like your typical condensation vapor. There was a faint smell of gas that also went away after about 15 seconds. Throughout the day nothing at all and the next day the same thing. I drove it back home (another 275 miles and other fill up) and the following day nothing at all besides an even more faint gas smell. No change in power, no rough idle, no warning lights, no drop in coolant levels or leaks that i can see. Also no spatter in the engine compartment of liquids. Could it be a clog in the fuel line that was pushed out, bad gas the first time or something else?

[White987S]

Normal. Flat 6 design. A puff of smoke, on cold start-up, that quickly clears, is n o r m a l.

[David Nerenberg]

Thank's very much. I'm new to Porsche and quickly realizing it is quite a bit different from all the japanese cars I've owned.

[Highlander]

Yup, totally normal if it's an occasional occurrence.   More than a little bit embarrassing if one of your neighbors sees you, but normal none the less :jump:

[Doug Wynn]

2000 Boxster S.

I had the same problem because I had the oil serviced at full mark.  I drained the oil out a bit to keep it in between 3/4 full.  Problem went away.

[JFP in PA]

11 hours ago, Doug Wynn said:

2000 Boxster S.

I had the same problem because I had the oil serviced at full mark.  I drained the oil out a bit to keep it in between 3/4 full.  Problem went away.

 

Welcome to RennTech

We see a lot of cars that are anywhere from slightly overfilled to way overfilled with oil.  These engine’s do not appreciate this and can respond by occasional smoke outbreaks.  We always keep our customer’s cars 1-2 bars below the top line, and every car that passes through the shop gets their crankcase vacuum level checked; if the show more than 5 inches of water when fully warmed up, they are a candidate for a new AOS, which can also cause the infamous Porsche smokescreen.