Thanks for the reply

There was a small leak from the filler cap which I fixed and there are no more signs of it leaking I replaced the rocker cover gasket a few months ago when I did the tappets, but its still using lots of oil.
The engine was warm but its actualy hard to tell how warm the needle never gets higher than the bottom of the NORM area.

There is a little bit of smoke at sart up but thats the only time you ever see smoke,
I thought that if oil came through the stem seals on the exhasut side it would get blown straight into the exhaust and wouldnt get burnt and thats what I saw on my hand.

I have a Corsa with an 8v engine much more reliable than the post 97 corsa that are 16v