Blueish Smoke At Idle

[dave_m]

The car has done 161k now and has recently started smoking at idle, If I sit ticking over I get a bit of smelly blueish smoke from the exhaust, when pulling off and revs increase a bit there is a big puff of smoke, as soon as revs are up a bit there is no smoke and the car drives fine, it is quite noticeable when sat at traffic lights.

 

Does seem to be worse when the car is hot i.e stuck in traffic, I did use some diesel redex recently, but car has been filled up since with no redex.

 

Any ideas, no doubt it will be something expensive :16:

[sepulchrave]

Valve stem seals?