Bro you are already using the best air filter. There is nothing wrong in it.
Bro this is more than enough for your brand new car. As learnt here from some members; usually PT, and 1.3L PT has bad fuel economy as compared to their MT counterparts. If you are much concerned with fuel efficiency, then you must have gone for 1.3L or 1.5L MT Honda City, or 1.5L PT Honda City, instead of 1.3L PT Honda City. Secondly, fuel efficiency of Honda City is bad in the beginning, and it gets better with time.
Do not worry much about fuel efficiency. IN SHA ALLAH, it will get better with time.
Your car will also come in this condition after some time. Just wait and relax.
Too much. Shift to OEM recommended TP ASAP. I think, its around 30-32 psi for Honda City, but please confirm. Exact and recommended TP will be mentioned on a sticker / placard, attached with driver's side door pillar.
Mind sharing the grade? Is it 0w-20 or 5w-30? (In both cases, its OK. Still, 0w-20 would be better)
Stick with Honda genuine air filter.
I would suggest regular gasoline from company operated & maintained Shell, and then Total fuel stations. PSO should be your 3rd and last option.
No need for any unnecessary "Chaaeer Chaar".
Bro, You are not right. As said by many other members too, you are already using the best air filter. Just always maintain it in neat & clean condition, free from any dust, debris, etc.
I hope, it helps. Thank you.