Extract from a thread on Vauxhall Owners site - all I remember now is that they were talking about a coolant leak related to the oil cooler and it ended up with all new cylinder heads and everything else associated therewith.
"Coolant Leak ....same as mine
I stripped Inlet manifold down to find water on the Oil cooer Sealing plate...porous hole in plate plus leaky seal......replaced cooler and plate complete £95 for items and did job myself....was warned that when undoing original cooler locking nuts the thread will cross....and it did..!!
Any way after building back up and starting up ...leak still present....drips at back of cyl head onto exhaust near downpipe/manifold joint.
Checked hoses and replaced Inlet to head banjo bolt dowty washers with copper washers. Still no joy.
Dealer said to leak out.not uncommon for this engine cyl heads .....car runs good....no contamination in oil or coolant but heater doesnt get hot in cabin and temp gauge floats from 90-94c alot...never overheats.
Next job to look at.....Cyl headf gasket....as ive exhausted anything else i can think of.
Any help from u guys would be welcome"
this must have been the problem with this elite as i had no problems with it over 15thou miles. did loose a little coolant though, just sorry it went pop on daz. but hey, ya takes ya chances.
I did also say it seemed slow, which you agreed with.
It is now done and is far faster, how a 3.0 should be also with no water leak
As for "But hey, ya takes ya chance" I would not say that to anyone that had anything off me being honest, ah well I will know for another time