blue exhaust puffs between shifts

[Corman12345]

Allright here is the deal, my tsi lets out puffs of blue smoke when accelerating after a shift, but it is just a puff. I just replaced my valve seals and head gasket thinking it was that but it still does it. Compression is 150 on all four cylinders and it has 105K miles on it

What could be causing this
Thanx

 

[laserturbo91]

you changed your oil lately?

 

[Defiant]

You're sucking in oil during high-vacuum conditions, either past the valve guides or rings. Have someone drive it while you follow it down a steep grade against compression. You'll see lots of smoke.