HI, for Premier, its about 1.22/l...but tat shld not be a major concern lah....you can sign up for Shell or Esso card for taxi, quite good discount also.
I'm not sure about premier. My last known price for Transcab is $1.22 but I never go to their kiosk. Not even once. Reason is because I prefer to pump at Esso, which is just opposite my house. Consolidate all the points & I use them to offset my diesel.
thanks for all your replies. Currently i am staying in the west. actually i dont mind taking silvercab though it is in the east. silvercab should be pratical to me. like one of u said after pump can go airport or the esso station offer good discount rates also.
In the end, find a company that suites you the most. Secondly, maybe there is a certain car model preference that you only want to go for. All the best ;)