Oil Consumption and oil recomendations
 

As soon as i got the S4 i did an oil and filter change, used the recommeded Shell Ultra 4. Now after 1300 miles its down to the lower level in the oil window. There are no oil leaks any ideas??
Rather than top it up im going to do another change but may use a different Make/Viscosity of oil, So any oil recomendations welcome.

What mileage is on the bike? Some bikes do use a bit of oil. A litre in a 1000 miles may be a little excessive but not unknown.
The Shell lubes are very good oils.
I would suggest try running a semi-synthetic in the bike. Shell VSX for instance.
The likely source of oil consumption will be from blow by in the cylinders. Maybe the bike was run in too gently and there's a bit of glazing on the rings??
It may recover using the lesser semi oil for a while, but it's not guaranteed.