Hmmmm, interesting find.
I have been driving mine on 50/50 mixed, and the fuel average is amazing.
I am a bit skeptical about totally relying on 91 since the fuel lid sticker says 95.
I read somewhere that the initial test units by Lucky were totally driven on 91 without any faults or problems.
I use Total, HOBC, and Super. This past week, I had to make an urgent trip to Islamabad and took my 2008.
I only re-fueled my car once from Attock H-8 after thorough research that the fuel pump is company-operated and had good reviews on Google Maps. I filled 50/50 again, but the car started jerking on attock's fuel for like 3β4 km, after which it disappeared and didnt happen again.