well even i also never leave my car at workshops so i have even spent full days at workshop, one was 9am to 8pm
werent u the one who was getting 7-8km/l?
10-12 WID ac is pretty good, what else u want
i cant see post office on map to guide u from there but well if u r coming to G9 markaz from kashmir highway side, there's a u turn infront of post office,enter the workshop area from there which is next to post office, the big plot
there's this exhaust guy at corner then denter painter next to him n then these mechanics, just ask by their name, Fida n Shakeel
btw do go there as early as possible to get free in time, by 9am or earlier
i went there at 8:30am n there was already one car b4 me lol though they come at 9am