All seems ok. I also drive from Bahria Gate 1 (Phase II) to F-7 daily for work. My avg is showing 13.2 kms/lit
I always fill full tank (auto stop) from Shell F-6, previously have been using Total F-6 and no other pump at all.
I am still on regular 5w-50 Taglon and will switch to 0w-20 this winter as warranty will also expire.
I have stock 16 inch wheels (205-55-16). Whenever I refil air, I get 35 psi.