sun was out again so just decided to do a oil and filter change this afternoon, lavished the old girl with Fuchs Titan Race Pro S 5W-40 Ester Fully Synthetic Engine Oil.
I will monitor the consumption from now and see if it any better, hopefully will be.
On a less than ideal front , whilst under the front I thought i'd just check thesnub mount condition, and it look to be totally shot from the outside, the rubber is just falling away and crumbling, safe to say it need to be changed, so another bit to order.
also found a water leak from the back of the engine somewhere , need to get my inspection cam in there to see more precisely, other than than nothing else to worry about yet.