Yes. Recently Kixx has introduced 10/40 fully synthetic oil and marketing these days.
But I believe that oil specifications of 5/30 are still best as compare to 10/40.
But isn't shell ultra fully synthetic is 5/40 ? (The dark grey bottle). We are selling it at Rs. 3370/4L with 8K interval. But this oil is being produced in Pak.
In the same category, Total 9000 5/30 is comparatively better. Its Singapore oil and being packed in Singapore as well. I'll prefer Total 9000 over Shell Ultra. Price wise both are same.
However, if wanna use fully synthetic oil, then LM 5/40 or Kixx Pao 5/40 tin pack or ZIC XQ can be far better choices (respectively) as compared with kixx 10/40 fully synthetic. These oils are energy conserving, reduce the fuel consumptions, provide optimum lubrication under extreme operating conditions, have good thermally stable viscosities, improve protection against wear, and good ccs as well (Cold Crank Stimulator, immediate lubrication during cold start).