Time interval? The Jetta has been smoking on startup for almost 1 year.:mad:

I did the nozzles and after about 1 week got the time to start the car after it had sat overnight and was stone cold.

The car smoked like every morning just like I showed for almost 1 year. Now every morning I start it up and only a light instant whiff of smoke. The same amount and type whiff that it did for the last 7 years before the "smoky start"

It is not oil smoke at all. When the nozzles wear bad they will blow blue smoke. I ran the original nozzles for 237k miles, 137k mile MORE than they should have been run. I have slowly seen a power loss almost not noticible over the last year. Now all my power is back and then some.:)

Loving it!