kenv

Valve seals. Oil leaks down past the seals into the combustion chambers after the car has been sitting for awhile ( such as overnight ). Then when you start the car in the morning that oil is burned resulting in the brief period of blue smoke. If the smoke is there all the time, then its usually because your rings are shot.

POISND U

How urgent is this? Should I run out and get these fixed tomorrow? Will it get worse? Or is the only problem gonna be the smoke?

Mustang_NTriangle

you might have a bad o-ring.

undecided.steve

It's not urgent, but if it gets bad enough it will foul your plugs and eventually your o2 sensors and cats as well.
Gotta be REAL bad for that though.

You might try using a slighty heavier oil.

cliffyk

15 to 20 seconds after a cold start isn't bad (though you didn't say how much it's puffing). When it smokes on a warm start after sitting for 30-60 minutes, or on closed throttle deceleration in gear (high manifold vacuum sucks oil past the intake valve seals), it will be time...

blownbayou

Bingo bango bongo

8-10 oil leaks are because of this

Unless you have MAC headers and did not clean them out (weld lag)

Later