U guyz no nothin on auto cars...well not all of u of course.
I have 2 auto cars and have had many be4.
WE all know P is Park , R is Revers, N is Neutral.
D= Drive - u shud use this gear in cities and on freeways.
D3 is for going up or down lightly steep hills or during slick road conditions.
D2 is for a real uphill task or towing..
L or 1 is for maximum engine braking and max deliverance of power in terms of getting up an icy Murree road..u get max power/control cuz u r using 4k rpm @ 10 km/h...duh!
If u r in KHI or FSD, never use the transmissions after "D" i.e D3, 2 (and maybe L/1)
If u r in ISB, use the 3 and 2 when going up margallas and possibly L if its a cold icy road and a steep hill..B careful tho