Thanks for the idea, which was my first concern as well.
But oil is just fine and normal. After my operation I have been driving for hours (some 500 km:s) in very hot weather to see if there should be any change, both with regards to the limp problem or the level coming up, but the level is 100% constant and the limp is unfortunately coming back. But, maybe not as frequent as before which gives me a little hope....
IŽll soon make another oilservice with new filter to be on the safe side anyway. As far as I remember, last time I got Shell Helix 10/40 fully synthetic.
which I hope is a good four season oil?