My ap1 has recently clocked 90k and started to smoke on and on vtec just not on idle it runs fine but chews a lot of oil also when the dipstick is removed there is a lot of pressure. My first thought was the rings but also the stem seals as when i bought the car it was run on mobile 1 0w40 with is a bit thin i thought any ideas chears.

 

Replace your PCV valve.

 

This can cause all the smoking and can it

 

Just checked the valve and it seems to be working its cliking and when i clamp the pipe leading to the valve the car doesnt like it. Also took it out and its not blocked or anything