Hi a quick summary of whats been going on i have an Astra mk4 2.0 16v SRI its recently been smoking from under the bonnet (burning oil) which i was able to smell inside the car aswell, on Friday night i drove the car for a couple of miles car was warm and nipped into halfords to buy a new fog light bulb i came out within 5mins went to start the car and it really struggled to fire up. parked up left it for 40mins tried again and started on the button. however turnt it back off again and re started it struggled turnt it off, started up again and it got even harder to start. i have no idea if the two things are linked but have now found the oil was coming from rocker cover so have now changed the gasket along with the pipe and gasket coming out from the front of the rocker cover (original had a box on and was covered in oil replaced for straight pipe as advised by vauxhall) the starting problem when hot is still a problem. Can anyone shed any light on this problem for me, and sorry for such a long description.