hi i have used motul for many years now with no problem i torqued the head down as per burtons instructions i think it was 95 ib ft . like i said there is no oil in the turbo pipes but i have found some in the plenium chamber . so i am now inspecting the standard breather system . the car is totally standard running standard boost pressure . there is a valve by the mapp sensor on the inner wing . i have tested this in the workshop and it appears to be ok but yet to see if it works on the car ,. do you know if it operates as soon as ignition is turned on or does it power up when required by the ecu .